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61
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PANTONE285C
CW50
CW50L
CW50N
OWNER’S MANUAL
2B6-F8199-E1
Read this manual carefully before operating this vehicle.
[English (E)]
EAU46090
Read this manual carefully before operating this vehicle. This manual should stay with this vehicle if it is sold.
U2B6E1E0.book Page 1 Wednesday, November 7, 2012 11:56 AM
INTRODUCTION
EAU10113
Welcome to the Yamaha world of motorcycling!
As the owner of the CW50/CW50L/CW50N, you are benefiting from Yamaha’s vast experience and newest technology re-
garding the design and manufacture of high-quality products, which have earned Yamaha a reputation for dependability.
Please take the time to read this manual thoroughly, so as to enjoy all advantages of your CW50/CW50L/CW50N. The Own-
er’s Manual does not only instruct you in how to operate, inspect and maintain your scooter, but also in how to safeguard
yourself and others from trouble and injury.
In addition, the many tips given in this manual will help keep your scooter in the best possible condition. If you have any fur-
ther questions, do not hesitate to contact your Yamaha dealer.
The Yamaha team wishes you many safe and pleasant rides. So, remember to put safety first!
Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most cur-
rent product information available at the time of printing, there may be minor discrepancies between your scooter and this
manual. If there is any question concerning this manual, please consult a Yamaha dealer.
WARNING
EWA12411
Please read this manual carefully and completely before operating this scooter.
U2B6E1E0.book Page 1 Wednesday, November 7, 2012 11:56 AM
IMPORTANT MANUAL INFORMATION
EAU10133
Particularly important information is distinguished in this manual by the following notations:
*Product and specifications are subject to change without notice.
This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury
or death.
A WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
A NOTICE indicates special precautions that must be taken to avoid damage to the
vehicle or other property.
A TIP provides key information to make procedures easier or clearer.
WARNING
NOTICE
TIP
U2B6E1E0.book Page 1 Wednesday, November 7, 2012 11:56 AM
IMPORTANT MANUAL INFORMATION
EAUM1011
CW50/CW50L/CW50N
OWNER’S MANUAL
©2012 by MBK INDUSTRIE
1st edition, October 2012
All rights reserved
Any reprinting or unauthorized use
without the written permission of
MBK INDUSTRIE
is expressly prohibited.
Printed in France.
U2B6E1E0.book Page 2 Wednesday, November 7, 2012 11:56 AM
TABLE OF CONTENTS
SAFETY INFORMATION ..................1-1
Further safe-riding points ................1-5
DESCRIPTION ..................................2-1
Left view ..........................................2-1
Right view........................................2-2
INSTRUMENT AND CONTROL
FUNCTIONS .......................................3-1
Main switch/steering lock ................3-1
Indicator lights and warning
lights ............................................3-2
Speedometer unit
(CW50/CW50L)............................3-3
Speedometer unit (CW50N) ............3-4
Fuel gauge (CW50/CW50L) ............3-4
Handlebar switches ........................3-5
Front brake lever ............................3-5
Rear brake lever .............................3-6
Fuel and 2-stroke engine oil tank
caps .............................................3-6
Fuel .................................................3-7
Catalytic converter ..........................3-8
2-stroke engine oil ..........................3-8
Kickstarter .......................................3-9
Securing bracket .............................3-9
Seat ................................................3-9
Anti-theft device housing ..............3-10
Adjusting the shock absorber
assembly (CW50L model
only) ...........................................3-10
Luggage hook .............................. 3-11
FOR YOUR SAFETY –
PRE-OPERATION CHECKS ............. 4-1
OPERATION AND IMPORTANT
RIDING POINTS................................. 5-1
Starting a cold engine .................... 5-1
Starting off ...................................... 5-2
Acceleration and deceleration ........ 5-2
Braking ........................................... 5-3
Tips for reducing fuel
consumption ............................... 5-3
Engine break-in .............................. 5-4
Parking ........................................... 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT ................................... 6-1
Periodic maintenance chart for the
emission control system ............. 6-2
General maintenance and
lubrication chart .......................... 6-3
Removing and installing the cowling
and panels .................................. 6-6
Checking the spark plug ................. 6-7
Final transmission oil ...................... 6-8
Cleaning the air filter element ........ 6-9
Adjusting the carburetor ............... 6-10
Checking the throttle grip free
play ........................................... 6-10
Tires ............................................. 6-10
Cast wheels ................................. 6-13
Checking the front brake lever free
play ........................................... 6-13
Adjusting the rear brake lever free
play ........................................... 6-13
Checking the front brake pads and
rear brake shoes ...................... 6-14
Checking the brake fluid level ...... 6-15
Changing the brake fluid .............. 6-16
Checking and lubricating the
cables ....................................... 6-16
Checking and lubricating the
throttle grip and cable ............... 6-16
Lubricating the front and rear
brake levers .............................. 6-17
Checking and lubricating the
centerstand ............................... 6-17
Checking the front fork ................. 6-18
Checking the steering .................. 6-19
Checking the wheel bearings ....... 6-19
Battery ......................................... 6-19
Replacing the fuse ....................... 6-21
Replacing a headlight bulb .......... 6-22
Replacing the tail/brake light
bulb ........................................... 6-22
Replacing a turn signal light
bulb ........................................... 6-23
Troubleshooting ........................... 6-23
Troubleshooting chart .................. 6-24
U2B6E1E0.book Page 1 Wednesday, November 7, 2012 11:56 AM
TABLE OF CONTENTS
SCOOTER CARE AND STORAGE ...7-1
Matte color caution .........................7-1
Care ................................................7-1
Storage ...........................................7-3
SPECIFICATIONS .............................8-1
CONSUMER INFORMATION.............9-1
Identification numbers ....................9-1
U2B6E1E0.book Page 2 Wednesday, November 7, 2012 11:56 AM
1-1
1
SAFETY INFORMATION
EAUT1018
Be a Responsible Owner
As the vehicle’s owner, you are respon-
sible for the safe and proper operation
of your scooter.
Scooters are single-track vehicles.
Their safe use and operation are de-
pendent upon the use of proper riding
techniques as well as the expertise of
the operator. Every operator should
know the following requirements before
riding this scooter.
He or she should:
Obtain thorough instructions from
a competent source on all aspects
of scooter operation.
Observe the warnings and mainte-
nance requirements in this Own-
er’s Manual.
Obtain qualified training in safe
and proper riding techniques.
Obtain professional technical ser-
vice as indicated in this Owner’s
Manual and/or when made neces-
sary by mechanical conditions.
Never operate a scooter without
proper training or instruction. Take
a training course. Beginners
should receive training from a cer-
tified instructor. Contact an autho-
rized scooter dealer to find out
about the training courses nearest
you.
Safe Riding
Perform the pre-operation checks each
time you use the vehicle to make sure it
is in safe operating condition. Failure to
inspect or maintain the vehicle properly
increases the possibility of an accident
or equipment damage. See page 4-1
for a list of pre-operation checks.
This scooter is designed to carry
the operator and a passenger.
TIP
Although this scooter is designed to
carry a passenger, always comply with
the local regulations.
The failure of motorists to detect
and recognize scooters in traffic is
the predominating cause of auto-
mobile/scooter accidents. Many
accidents have been caused by an
automobile driver who did not see
the scooter. Making yourself con-
spicuous appears to be very effec-
tive in reducing the chance of this
type of accident.
Therefore:
Wear a brightly colored jacket.
Use extra caution when you are
approaching and passing
through intersections, since in-
tersections are the most likely
places for scooter accidents to
occur.
Ride where other motorists can
see you. Avoid riding in another
motorist’s blind spot.
Never maintain a scooter with-
out proper knowledge. Contact
an authorized scooter dealer to
inform you on basic scooter
maintenance. Certain mainte-
nance can only be carried out by
certified staff.
U2B6E1E0.book Page 1 Wednesday, November 7, 2012 11:56 AM
SAFETY INFORMATION
1-2
1
Many accidents involve inexperi-
enced operators. In fact, many op-
erators who have been involved in
accidents do not even have a cur-
rent driver’s license.
Make sure that you are qualified
and that you only lend your
scooter to other qualified opera-
tors.
Know your skills and limits.
Staying within your limits may
help you to avoid an accident.
We recommend that you prac-
tice riding your scooter where
there is no traffic until you have
become thoroughly familiar with
the scooter and all of its con-
trols.
Many accidents have been caused
by error of the scooter operator. A
typical error made by the operator
is veering wide on a turn due to ex-
cessive speed or undercornering
(insufficient lean angle for the
speed).
Always obey the speed limit and
never travel faster than warrant-
ed by road and traffic conditions.
Always signal before turning or
changing lanes. Make sure that
other motorists can see you.
The posture of the operator and
passenger is important for proper
control.
The operator should keep both
hands on the handlebar and
both feet on the operator foot-
rests during operation to main-
tain control of the scooter.
• The passenger should always
hold onto the operator, the seat
strap or grab bar, if equipped,
with both hands and keep both
feet on the passenger footrests.
Never carry a passenger unless
he or she can firmly place both
feet on the passenger footrests.
Never ride under the influence of
alcohol or other drugs.
This scooter is designed for on-
road use only. It is not suitable for
off-road use.
Protective Apparel
The majority of fatalities from scooter
accidents are the result of head inju-
ries. The use of a safety helmet is the
single most critical factor in the preven-
tion or reduction of head injuries.
Always wear an approved helmet.
Wear a face shield or goggles.
Wind in your unprotected eyes
could contribute to an impairment
of vision that could delay seeing a
hazard.
The use of a jacket, substantial
shoes, trousers, gloves, etc., is ef-
fective in preventing or reducing
abrasions or lacerations.
Never wear loose-fitting clothes,
otherwise they could catch on the
control levers or wheels and cause
injury or an accident.
Always wear protective clothing
that covers your legs, ankles, and
feet. The engine or exhaust sys-
tem become very hot during or af-
ter operation and can cause burns.
A passenger should also observe
the above precautions.
U2B6E1E0.book Page 2 Wednesday, November 7, 2012 11:56 AM
SAFETY INFORMATION
1-3
1
Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon
monoxide, a deadly gas. Breathing car-
bon monoxide can cause headaches,
dizziness, drowsiness, nausea, confu-
sion, and eventually death.
Carbon Monoxide is a colorless, odor-
less, tasteless gas which may be
present even if you do not see or smell
any engine exhaust. Deadly levels of
carbon monoxide can collect rapidly
and you can quickly be overcome and
unable to save yourself. Also, deadly
levels of carbon monoxide can linger
for hours or days in enclosed or poorly
ventilated areas. If you experience any
symptoms of carbon monoxide poison-
ing, leave the area immediately, get
fresh air, and SEEK MEDICAL TREAT-
MENT.
Do not run engine indoors. Even if
you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rap-
idly reach dangerous levels.
Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports.
Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Loading
Adding accessories or cargo to your
scooter can adversely affect stability
and handling if the weight distribution of
the scooter is changed. To avoid the
possibility of an accident, use extreme
caution when adding cargo or accesso-
ries to your scooter. Use extra care
when riding a scooter that has added
cargo or accessories. Here, along with
the information about accessories be-
low, are some general guidelines to fol-
low if loading cargo to your scooter:
The total weight of the operator, pas-
senger, accessories and cargo must
not exceed the maximum load limit.
Operation of an overloaded vehicle
could cause an accident.
When loading within this weight limit,
keep the following in mind:
Cargo and accessory weight
should be kept as low and close to
the scooter as possible. Securely
pack your heaviest items as close
to the center of the vehicle as pos-
sible and make sure to distribute
the weight as evenly as possible
on both sides of the scooter to min-
imize imbalance or instability.
Shifting weights can create a sud-
den imbalance. Make sure that ac-
cessories and cargo are securely
attached to the scooter before
riding. Check accessory mounts
and cargo restraints frequently.
Properly adjust the suspension
for your load (suspension-ad-
justable models only), and
check the condition and pres-
sure of your tires.
Never attach any large or heavy
items to the handlebar, front
fork, or front fender. Such items
can create unstable handling or
a slow steering response.
This vehicle is not designed to
pull a trailer or to be attached to
a sidecar.
Maximum load:
185 kg (408 lb)
U2B6E1E0.book Page 3 Wednesday, November 7, 2012 11:56 AM
SAFETY INFORMATION
1-4
1
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail-
able only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection to
Yamaha manufacture parts and acces-
sories or offer other modifications for
Yamaha vehicles. Yamaha is not in a
position to test the products that these
aftermarket companies produce.
Therefore, Yamaha can neither en-
dorse nor recommend the use of ac-
cessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer.
Aftermarket Parts, Accessories, and
Modifications
While you may find aftermarket prod-
ucts similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accessories
or modifications are not suitable be-
cause of potential safety hazards to you
or others. Installing aftermarket prod-
ucts or having other modifications per-
formed to your vehicle that change any
of the vehicle’s design or operation
characteristics can put you and others
at greater risk of serious injury or death.
You are responsible for injuries related
to changes in the vehicle.
Keep the following guidelines in mind,
as well as those provided under “Load-
ing” when mounting accessories.
Never install accessories or carry
cargo that would impair the perfor-
mance of your scooter. Carefully
inspect the accessory before using
it to make sure that it does not in
any way reduce ground clearance
or cornering clearance, limit sus-
pension travel, steering travel or
control operation, or obscure lights
or reflectors.
Accessories fitted to the handle-
bar or the front fork area can
create instability due to improper
weight distribution or aerody-
namic changes. If accessories
are added to the handlebar or
front fork area, they must be as
lightweight as possible and
should be kept to a minimum.
Bulky or large accessories may
seriously affect the stability of
the scooter due to aerodynamic
effects. Wind may attempt to lift
the scooter, or the scooter may
become unstable in cross
winds. These accessories may
also cause instability when
passing or being passed by
large vehicles.
Certain accessories can dis-
place the operator from his or
her normal riding position. This
improper position limits the free-
dom of movement of the opera-
tor and may limit control ability,
therefore, such accessories are
not recommended.
Use caution when adding electri-
cal accessories. If electrical acces-
sories exceed the capacity of the
scooter’s electrical system, an
electric failure could result, which
could cause a dangerous loss of
lights or engine power.
U2B6E1E0.book Page 4 Wednesday, November 7, 2012 11:56 AM
SAFETY INFORMATION
1-5
1
Aftermarket Tires and Rims
The tires and rims that came with your
scooter were designed to match the
performance capabilities and to provide
the best combination of handling, brak-
ing, and comfort. Other tires, rims, siz-
es, and combinations may not be
appropriate. Refer to page 6-10 for tire
specifications and more information on
replacing your tires.
Transporting the Scooter
Be sure to observe following instruc-
tions before transporting the scooter in
another vehicle.
Remove all loose items from the
scooter.
Point the front wheel straight
ahead on the trailer or in the truck
bed, and choke it in a rail to pre-
vent movement.
Secure the scooter with tie-downs
or suitable straps that are attached
to solid parts of the scooter, such
as the frame or upper front fork tri-
ple clamp (and not, for example, to
rubber-mounted handlebars or
turn signals, or parts that could
break). Choose the location for the
straps carefully so the straps will
not rub against painted surfaces
during transport.
The suspension should be com-
pressed somewhat by the tie-
downs, if possible, so that the
scooter will not bounce excessive-
ly during transport.
EAU10373
Further safe-riding points
Be sure to signal clearly when
making turns.
Braking can be extremely difficult
on a wet road. Avoid hard braking,
because the scooter could slide.
Apply the brakes slowly when
stopping on a wet surface.
Slow down as you approach a cor-
ner or turn. Once you have com-
pleted a turn, accelerate slowly.
Be careful when passing parked
cars. A driver might not see you
and open a door in your path.
Railroad crossings, streetcar rails,
iron plates on road construction
sites, and manhole covers be-
come extremely slippery when
wet. Slow down and cross them
with caution. Keep the scooter up-
right, otherwise it could slide out
from under you.
The brake pads could get wet
when you wash the scooter. After
washing the scooter, check the
brakes before riding.
U2B6E1E0.book Page 5 Wednesday, November 7, 2012 11:56 AM
SAFETY INFORMATION
1-6
1
Always wear a helmet, gloves,
trousers (tapered around the cuff
and ankle so they do not flap), and
a bright colored jacket.
Do not carry too much luggage on
the scooter. An overloaded scoot-
er is unstable. Use a strong cord to
secure any luggage to the carrier
(if equipped). A loose load will af-
fect the stability of the scooter and
could divert your attention from the
road. (See page 1-3.)
U2B6E1E0.book Page 6 Wednesday, November 7, 2012 11:56 AM
DESCRIPTION
2-1
2
EAU10410
Left view
1. Rear brake lever (page 3-6)
2. Speedometer unit (page 3-3)
3. Left handlebar switches (page 3-5)
4. Kickstarter (page 3-9)
5. Air filter element (page 6-9)
6. Final transmission oil filler cap (page 6-8)
7. Final transmission oil drain bolt (page 6-8)
8. Centerstand (page 6-17)
9. Battery/fuse (page 6-19/6-21)
10.Shock absorber assembly spring preload adjusting ring (page 3-10)
U2B6E1E0.book Page 1 Wednesday, November 7, 2012 11:56 AM
DESCRIPTION
2-2
2
EAU10420
Right view
1. Grab bar (page 5-2)
2. Oil tank cap (page 3-8)
3. Fuel tank cap (page 3-6)
4. Throttle grip (page 6-10)
5. Right handlebar switch (page 3-5)
6. Front brake lever (page 3-5)
7. Luggage hook (page 3-11)
8. Anti-theft device housing (page 3-10)
9. Securing bracket (page 3-9)
U2B6E1E0.book Page 2 Wednesday, November 7, 2012 11:56 AM
INSTRUMENT AND CONTROL FUNCTIONS
3-1
3
EAU10461
Main switch/steering lock
The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
EAU10640
ON “
All electrical circuits are supplied with
power, and the engine can be started.
The key cannot be removed.
TIP
The headlight, meter lighting and tail-
light come on automatically when the
engine is started.
EAU10661
OFF “
All electrical systems are off. The key
can be removed.
WARNING
EWA10061
Never turn the key to ” or
while the vehicle is moving. Other-
wise the electrical systems will be
switched off, which may result in
loss of control or an accident.
EAU10670
CHECK “ ” (CW50/CW50L)
The 2-stroke engine oil level warning
light should come on. (See page 3-2.)
EAUM2920
CHECK “ ” (CW50N)
The 2-stroke engine oil level warning
light and the fuel level warning light
should come on. (See page 3-2.)
EAU10684
LOCK “
The steering is locked, and all electrical
systems are off. The key can be re-
moved.
To lock the steering
1. Turn the handlebars all the way to
the left.
2. Push the key in from the “ ” posi-
tion, and then turn it to while
still pushing it.
3. Remove the key.
To unlock the steering
Push the key in, and then turn it to “
while still pushing it.
PUSH
OPEN
ZAUM0253
U2B6E1E0.book Page 1 Wednesday, November 7, 2012 11:56 AM
INSTRUMENT AND CONTROL FUNCTIONS
3-2
3
EAU49392
Indicator lights and warning
lights
CW50/CW50L
CW50N
EAU11030
Turn signal indicator lights “
and “ ” (CW50/CW50L)
The corresponding indicator light flash-
es when the turn signal switch is
pushed to the left or right.
EAU11020
Turn signal indicator light “
(CW50N)
This indicator light flashes when the
turn signal switch is pushed to the left or
right.
EAU11080
High beam indicator light “
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU11181
Oil level warning light “
This warning light comes on when the
key is in the ” position or if the oil lev-
el in the 2-stroke engine oil tank is low
during operation. If the warning light
comes on during operation, stop imme-
diately and fill the oil tank with Ya-
malube 2 or equivalent 2-stroke engine
oil of either JASO grade “FC” or ISO
grades “EG-C” or “EG-D”. The warning
light should go off after the 2-stroke en-
gine oil tank has been refilled.
TIP
If the warning light does not come on
when the key is in the ” position or
does not go off after the 2-stroke en-
gine oil tank has been refilled, have a
Yamaha dealer check the electrical cir-
cuit.
1. Left turn signal indicator light
2. Right turn signal indicator light “
3. High beam indicator light
4. Oil level warning light “
12
34
ZAUM0554
1. High beam indicator light “
2. Turn signal indicator light
3. Fuel level warning light “
4. Oil level warning light “
ZAUM0962
3
4
2
1
U2B6E1E0.book Page 2 Wednesday, November 7, 2012 11:56 AM
INSTRUMENT AND CONTROL FUNCTIONS
3-3
3
NOTICE
ECA16291
Do not operate the vehicle until you
know that the engine oil level is suf-
ficient.
EAUM2910
Fuel level warning light “
(CW50N)
This warning light comes on when only
the last two segments of the fuel meter
are displayed, approximately 1.5 L
(0.40 US gal, 0.33 Imp.gal) of fuel re-
mains in the fuel tank. If this occurs, re-
fuel as soon as possible.
TIP
Do not allow the fuel tank to empty
itself completely.
The last segment of the fuel meter
and the fuel symbol will flash when
the fuel tank is nearly empty.
The electrical circuit of the warning
light can be checked as follows.
Turn the key to ”. If the warning light
does not come on, have a Yamaha
dealer check the electrical circuit.
EAU11621
Speedometer unit
(CW50/CW50L)
UK ONLY
ZAUM0963
1. Speedometer
2. Odometer
1. Speedometer
2. Odometer
12
ZAUM0555
12
ZAUM0590
U2B6E1E0.book Page 3 Wednesday, November 7, 2012 11:56 AM
INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
The speedometer unit is equipped with
a speedometer and an odometer. The
speedometer shows riding speed. The
odometer shows the total distance trav-
eled.
EAUM1590
Speedometer unit (CW50N)
The speedometer unit is equipped with
a speedometer, an odometer and a fuel
meter. The speedometer shows riding
speed. The odometer shows the total
distance traveled. The fuel meter indi-
cates the amount of fuel in the fuel tank.
(See page 3-2 for an explanation of the
fuel level warning light.)
EAU12111
Fuel gauge (CW50/CW50L)
The fuel gauge indicates the amount of
fuel in the fuel tank. The needle moves
towards “E” (Empty) as the fuel level
decreases. When the needle reaches
“E”, approximately 1.2 L (0.32 US gal,
0.26 Imp.gal) of fuel remain in the fuel
tank. If this occurs, refuel as soon as
possible.
1. Speedometer
2. Odometer
3. Fuel meter
ZAUM0964
1
2
3
1. Fuel gauge
ZAUM0967
1
U2B6E1E0.book Page 4 Wednesday, November 7, 2012 11:56 AM
INSTRUMENT AND CONTROL FUNCTIONS
3-5
3
EAU1234B
Handlebar switches
Left
Right
EAU12400
Dimmer switch /
Set this switch to ” for the high
beam and to “ ” for the low beam.
EAU12460
Turn signal switch “ /
To signal a right-hand turn, push this
switch to ”. To signal a left-hand
turn, push this switch to . When re-
leased, the switch returns to the center
position. To cancel the turn signal
lights, push the switch in after it has re-
turned to the center position.
EAU12500
Horn switch
Press this switch to sound the horn.
EAUM1132
Start switch “
Push this switch while applying the
front or rear brake to crank the engine
with the starter. See page 5-1 for start-
ing instructions prior to starting the en-
gine.
EAU12901
Front brake lever
The front brake lever is located on the
right side of the handlebar. To apply the
front brake, pull this lever toward the
throttle grip.
1. Horn switch “
2. Turn signal switch “ /
3. Dimmer switch “ /
1. Start switch “
1
2
3
ZAUM0557
1
ZAUM0473
1. Front brake lever
1
ZAUM0791
U2B6E1E0.book Page 5 Wednesday, November 7, 2012 11:56 AM
INSTRUMENT AND CONTROL FUNCTIONS
3-6
3
EAU12951
Rear brake lever
The rear brake lever is located on the
left side of the handlebar. To apply the
rear brake, pull this lever toward the
handlebar grip.
EAU13202
Fuel and 2-stroke engine oil
tank caps
The fuel tank cap and the 2-stroke en-
gine oil tank cap are located under the
seat. (See page 3-9.)
Fuel tank cap
To remove the fuel tank cap, turn it
counterclockwise, and then pull it off.
To install the fuel tank cap, turn it clock-
wise.
2-stroke engine oil tank cap
To remove the 2-stroke engine oil tank
cap, pull it off.
To install the 2-stroke engine oil tank
cap, push it into the oil tank opening.
WARNING
EWA10141
Make sure that the fuel and 2-stroke
engine oil tank caps are properly in-
stalled before riding the scooter.
Leaking fuel is a fire hazard.
1. Rear brake lever
1
ZAUM0085
1. Fuel tank cap
2. 2-stroke engine oil tank cap
12
ZAUM0560
U2B6E1E0.book Page 6 Wednesday, November 7, 2012 11:56 AM
INSTRUMENT AND CONTROL FUNCTIONS
3-7
3
EAU13212
Fuel
Make sure there is sufficient gasoline in
the tank.
WARNING
EWA10881
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow
these instructions.
1. Before refueling, turn off the en-
gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters and
clothes dryers.
2. Do not overfill the fuel tank. Stop
filling when the fuel reaches the
bottom of the filler tube. Because
fuel expands when it heats up,
heat from the engine or the sun
can cause fuel to spill out of the
fuel tank.
3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
[ECA10071]
4. Be sure to securely close the fuel
tank cap.
WARNING
EWA15151
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your doctor immedi-
ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change
your clothes.
EAUM2730
Your Yamaha engine has been de-
signed to use premium unleaded gaso-
line with a research octane number of
95 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different
brand. Use of unleaded fuel will extend
spark plug life and reduce maintenance
costs.
1. Fuel tank filler tube
2. Maximum fuel level
1
2
ZAUM0020
Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
5.3 L (1.40 US gal, 1.17 Imp.gal)
Fuel reserve amount (when the fuel
level warning light comes on):
CW50 1.2 L (0.32 US gal,
0.26 Imp.gal)
CW50L 1.2 L (0.32 US gal,
0.26 Imp.gal)
CW50N 1.5 L (0.40 US gal,
0.33 Imp.gal)
U2B6E1E0.book Page 7 Wednesday, November 7, 2012 11:56 AM
INSTRUMENT AND CONTROL FUNCTIONS
3-8
3
EAU13433
Catalytic converter
This model is equipped with a catalytic
converter in the exhaust system.
WARNING
EWA10862
The exhaust system is hot after op-
eration. To prevent a fire hazard or
burns:
Do not park the vehicle near
possible fire hazards such as
grass or other materials that
easily burn.
Park the vehicle in a place
where pedestrians or children
are not likely to touch the hot
exhaust system.
Make sure that the exhaust sys-
tem has cooled down before do-
ing any maintenance work.
Do not allow the engine to idle
more than a few minutes. Long
idling can cause a build-up of
heat.
NOTICE
ECA10701
Use only unleaded gasoline. The use
of leaded gasoline will cause unre-
pairable damage to the catalytic
converter.
EAU13453
2-stroke engine oil
Make sure that there is sufficient 2-
stroke engine oil in the oil tank. Add the
recommended 2-stroke engine oil as
necessary.
NOTICE
ECA16670
Make sure that the 2-stroke engine
oil tank cap is properly installed.
Recommended oil:
See page 8-1.
Oil quantity:
1.10 L (1.16 US qt, 0.97 Imp.qt)
U2B6E1E0.book Page 8 Wednesday, November 7, 2012 11:56 AM
INSTRUMENT AND CONTROL FUNCTIONS
3-9
3
EAUS1050
Kickstarter
To start the engine, push the kickstarter
down lightly with your foot until the
gears engage, and then push it down
smoothly but forcefully.
EAUT1040
Securing bracket
To prevent theft, the securing bracket
can be used to chain the scooter to a
stationary object such as a lamppost or
a fence.
To secure the scooter with a chain or
cable lock, place the scooter on the
centerstand, pass the chain or cable
through the securing bracket and
around the stationary object, and then
lock the chain or cable lock.
WARNING
EWAT1020
Be sure to remove the chain or cable
before riding, otherwise the scooter
may overturn, causing damage or in-
jury.
EAU13932
Seat
To open the seat
1. Place the scooter on the center-
stand.
2. Insert the key into the main switch,
and then turn it counterclockwise
to “OPEN”.
TIP
Do not push inward when turning the
key.
3. Fold the seat up.
1. Kickstarter
1
ZAUM0146
1. Securing bracket
1
ZAUM0559
PUSH
OPEN
ZAUM0253
U2B6E1E0.book Page 9 Wednesday, November 7, 2012 11:56 AM
INSTRUMENT AND CONTROL FUNCTIONS
3-10
3
To close the seat
1. Fold the seat down, and then push
it down to lock it in place.
2. Remove the key from the main
switch if the scooter will be left un-
attended.
TIP
Make sure that the seat is properly se-
cured before riding.
EAUM1580
Anti-theft device housing
The anti-theft device housing, located
under the seat, is designed to store a
joint type anti-theft device with a maxi-
mum length of 1 meter. (See page 3-9
for seat opening and closing proce-
dures.)
TIP
Some anti-theft devices cannot fit into
the housing due to their size or shape.
EAU14833
Adjusting the shock absorber
assembly (CW50L model only)
This shock absorber assembly is
equipped with a spring preload adjust-
ing ring.
NOTICE
ECA10101
To avoid damaging the mechanism,
do not attempt to turn beyond the
maximum or minimum settings.
Adjust the spring preload as follows.
To increase the spring preload and
thereby harden the suspension, turn
the adjusting ring in direction (a). To de-
crease the spring preload and thereby
soften the suspension, turn the adjust-
ing ring in direction (b).
1. Open.
1
ZAUM0558
1. Anti-theft device housing
1
ZAUM0561
U2B6E1E0.book Page 10 Wednesday, November 7, 2012 11:56 AM
INSTRUMENT AND CONTROL FUNCTIONS
3-11
3
Align the appropriate notch in the ad-
justing ring with the position indicator
on the shock absorber.
WARNING
EWA10221
This shock absorber assembly con-
tains highly pressurized nitrogen
gas. Read and understand the fol-
lowing information before handling
the shock absorber assembly.
Do not tamper with or attempt to
open the cylinder assembly.
Do not subject the shock ab-
sorber assembly to an open
flame or other high heat source.
This may cause the unit to ex-
plode due to excessive gas
pressure.
Do not deform or damage the
cylinder in any way. Cylinder
damage will result in poor
damping performance.
Do not dispose of a damaged or
worn-out shock absorber as-
sembly yourself. Take the shock
absorber assembly to a Yamaha
dealer for any service.
EAUT1072
Luggage hook
WARNING
EWAT1031
Do not exceed the load limit of 3
kg (6.6 lb) for the luggage hook.
Do not exceed the maximum
load of 185 kg (408 lb) for the ve-
hicle.
1. Spring preload adjusting ring
2. Position indicator
Spring preload setting:
Minimum (soft):
1
Standard:
2
Maximum (hard):
4
(b) (a)
1
ZAUM0961
1
2
3
4
2
1. Luggage hook
1
ZAUM0562
U2B6E1E0.book Page 11 Wednesday, November 7, 2012 11:56 AM
FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-1
4
EAU15597
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11151
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage.
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided in
this manual, have the vehicle inspected by a Yamaha dealer.
Before using this vehicle, check the following points:
ITEM CHECKS PAGE
Fuel
Check fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.
3-7
2-stroke engine oil
Check oil level in oil tank.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage.
3-8
Final transmission oil Check vehicle for oil leakage. 6-8
Front brake
Check operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check brake pads for wear.
Replace if necessary.
Check fluid level in reservoir.
If necessary, add specified brake fluid to specified level.
Check hydraulic system for leakage.
6-14, 6-15
Rear brake
Check operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary.
6-13, 6-14
U2B6E1E0.book Page 1 Wednesday, November 7, 2012 11:56 AM
FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-2
4
Throttle grip
Make sure that operation is smooth.
Check throttle grip free play.
If necessary, have Yamaha dealer adjust throttle grip free play and lubricate cable
and grip housing.
6-10, 6-16
Wheels and tires
Check for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary.
6-10, 6-13
Brake levers
Make sure that operation is smooth.
Lubricate lever pivoting points if necessary.
6-17
Centerstand
Make sure that operation is smooth.
Lubricate pivot if necessary.
6-17
Chassis fasteners
Make sure that all nuts, bolts and screws are properly tightened.
Tighten if necessary.
Instruments, lights, signals
and switches
Check operation.
Correct if necessary.
Battery
Check fluid level.
Fill with distilled water if necessary.
6-19
ITEM CHECKS PAGE
U2B6E1E0.book Page 2 Wednesday, November 7, 2012 11:56 AM
OPERATION AND IMPORTANT RIDING POINTS
5-1
5
EAU15951
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWA10271
Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which could cause an accident
or injury.
EAU16566
Starting a cold engine
NOTICE
ECA10250
See page 5-4 for engine break-in in-
structions prior to operating the ve-
hicle for the first time.
1. Turn the key to “ , and when the
oil level warning light comes on,
turn the key to ”.
NOTICE
ECA10240
If the oil level warning light does not
come on, have a Yamaha dealer
check the electrical circuit.
2. Close the throttle completely.
3. While applying the front or rear
brake, start the engine by pushing
the start switch or by pushing the
kickstarter lever down.
If the engine fails to start by push-
ing the start switch, release the
switch, wait a few seconds, and
then try again. Each starting at-
tempt should be as short as possi-
ble to preserve the battery. Do not
crank the engine more than 5 sec-
onds on any one attempt. If the en-
gine does not start with the starter
motor, try using the kickstarter.
PUSH
OPEN
ZAUM0253
ZAUM0367
U2B6E1E0.book Page 1 Wednesday, November 7, 2012 11:56 AM
OPERATION AND IMPORTANT RIDING POINTS
5-2
5
NOTICE
ECA11042
For maximum engine life, never ac-
celerate hard when the engine is
cold!
EAU16761
Starting off
TIP
Before starting off, allow the engine to
warm up.
1. While pulling the rear brake lever
with your left hand and holding the
grab bar with your right hand, push
the scooter off the centerstand.
2. Sit astride the seat, and then ad-
just the rear view mirrors.
3. Switch the turn signals on.
4. Check for oncoming traffic, and
then slowly turn the throttle grip (on
the right) in order to take off.
5. Switch the turn signals off.
EAU16780
Acceleration and deceleration
The speed can be adjusted by opening
and closing the throttle. To increase the
speed, turn the throttle grip in direction
(a). To reduce the speed, turn the throt-
tle grip in direction (b).
ZAUM0316
(b)
(a)
ZAUM0199
U2B6E1E0.book Page 2 Wednesday, November 7, 2012 11:56 AM
OPERATION AND IMPORTANT RIDING POINTS
5-3
5
EAU16793
Braking
WARNING
EWA10300
Avoid braking hard or suddenly
(especially when leaning over to
one side), otherwise the scooter
may skid or overturn.
Railroad crossings, streetcar
rails, iron plates on road con-
struction sites, and manhole
covers become extremely slip-
pery when wet. Therefore, slow
down when approaching such
areas and cross them with cau-
tion.
Keep in mind that braking on a
wet road is much more difficult.
Ride slowly down a hill, as brak-
ing downhill can be very diffi-
cult.
1. Close the throttle completely.
2. Apply both front and rear brakes
simultaneously while gradually in-
creasing the pressure.
EAU16820
Tips for reducing fuel con-
sumption
Fuel consumption depends largely on
your riding style. Consider the following
tips to reduce fuel consumption:
Avoid high engine speeds during
acceleration.
Avoid high engine speeds with no
load on the engine.
Turn the engine off instead of let-
ting it idle for an extended length of
time (e.g., in traffic jams, at traffic
lights or at railroad crossings).
ZAUM0563
U2B6E1E0.book Page 3 Wednesday, November 7, 2012 11:56 AM
OPERATION AND IMPORTANT RIDING POINTS
5-4
5
EAU16830
Engine break-in
There is never a more important period
in the life of your engine than the period
between 0 and 1000 km (600 mi). For
this reason, you should read the follow-
ing material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1000 km (600 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that might
result in engine overheating must be
avoided.
EAUM2091
0–150 km (0–90 mi)
Avoid prolonged operation above 1/3
throttle. Vary the speed of the scooter
from time to time. Do not operate it at
one set throttle position.
150–500 km (90–300 mi)
Avoid prolonged operation above 1/2
throttle.
500–1000 km (300–600 mi)
Avoid cruising speeds in excess of 3/4
throttle.
1000 km (600 mi) and beyond
Avoid prolonged full throttle operation.
Vary speeds occasionally. NOTICE:
After 1000 km (600 mi) of operation,
the final transmission oil must be
changed.
[ECAM1071]
NOTICE
ECA10270
If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle.
EAU17213
Parking
When parking, stop the engine, and
then remove the key from the main
switch.
WARNING
EWA10311
Since the engine and exhaust
system can become very hot,
park in a place where pedestri-
ans or children are not likely to
touch them and be burned.
Do not park on a slope or on soft
ground, otherwise the vehicle
may overturn, increasing the
risk of a fuel leak and fire.
Do not park near grass or other
flammable materials which
might catch fire.
U2B6E1E0.book Page 4 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-1
6
EAU17244
Periodic inspection, adjustment, and lu-
brication will keep your vehicle in the
safest and most efficient condition pos-
sible. Safety is an obligation of the vehi-
cle owner/operator. The most important
points of vehicle inspection, adjust-
ment, and lubrication are explained on
the following pages.
The intervals given in the periodic
maintenance charts should be simply
considered as a general guide under
normal riding conditions. However, de-
pending on the weather, terrain, geo-
graphical location, and individual use,
the maintenance intervals may need to
be shortened.
WARNING
EWA10321
Failure to properly maintain the ve-
hicle or performing maintenance ac-
tivities incorrectly may increase
your risk of injury or death during
service or while using the vehicle. If
you are not familiar with vehicle ser-
vice, have a Yamaha dealer perform
service.
WARNING
EWA15122
Turn off the engine when performing
maintenance unless otherwise
specified.
A running engine has moving
parts that can catch on body
parts or clothing and electrical
parts that can cause shocks or
fires.
Running the engine while ser-
vicing can lead to eye injury,
burns, fire, or carbon monoxide
poisoning – possibly leading to
death. See page 1-3 for more in-
formation about carbon monox-
ide.
WARNING
EWA15460
Brake discs, calipers, drums, and
linings can become very hot during
use. To avoid possible burns, let
brake components cool before
touching them.
EAU17302
Emission controls not only function to
ensure cleaner air, but are also vital to
proper engine operation and maximum
performance. In the following periodic
maintenance charts, the services relat-
ed to emissions control are grouped
separately. These services require
specialized data, knowledge, and
equipment. Maintenance, replacement,
or repair of the emission control devic-
es and systems may be performed by
any repair establishment or individual
that is certified (if applicable). Yamaha
dealers are trained and equipped to
perform these particular services.
U2B6E1E0.book Page 1 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-2
6
EAU46871
TIP
The annual checks must be performed every year, except if a kilometer-based maintenance, or for the UK, a
mileage-based maintenance, is performed instead.
From 30000 km (17500 mi), repeat the maintenance intervals starting from 6000 km (3500 mi).
Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical
skills.
EAU46920
Periodic maintenance chart for the emission control system
NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi)
6000 km
(3500 mi)
12000 km
(7000 mi)
18000 km
(10500 mi)
24000 km
(14000 mi)
1 * Fuel line
Check fuel and vacuum hoses for
cracks or damage.
√√√√√
2 Spark plug Replace. √√√√√
3 * Carburetor Adjust engine idling speed. √√√√√√
U2B6E1E0.book Page 2 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-3
6
EAU17718
General maintenance and lubrication chart
NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi)
6000 km
(3500 mi)
12000 km
(7000 mi)
18000 km
(10500 mi)
24000 km
(14000 mi)
1 Air filter element
Clean. √√
Replace. √√
2 * Battery
Check electrolyte level and specif-
ic gravity.
Make sure that the breather hose
is properly routed.
√√√√√
3 * Front brake
Check operation, fluid level and
vehicle for fluid leakage.
√√√√√√
Replace brake pads. Whenever worn to the limit
4 * Rear brake
Check operation and adjust brake
lever free play.
√√√√√√
Replace brake shoes. Whenever worn to the limit
5 * Brake hose
Check for cracks or damage.
Check for correct routing and
clamping.
√√√√√
Replace. Every 4 years
6 * Wheels Check runout and for damage. √√√√
7 * Tires
Check tread depth and for dam-
age.
Replace if necessary.
Check air pressure.
Correct if necessary.
√√√√√
8 * Wheel bearings
Check bearing for looseness or
damage.
√√√√
U2B6E1E0.book Page 3 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-4
6
9 * Steering bearings
Check bearing play and steering
for roughness.
√√√√√
Lubricate with lithium-soap-based
grease.
Every 24000 km (14000 mi)
10 * Chassis fasteners
Make sure that all nuts, bolts and
screws are properly tightened.
√√√√√
11
Front brake lever
pivot shaft
Lubricate with silicone grease. √√√√√
12
Rear brake lever
pivot shaft
Lubricate with lithium-soap-based
grease.
√√√√√
13 Centerstand
Check operation.
Lubricate.
√√√√√
14 * Front fork
Check operation and for oil leak-
age.
√√√√
15 *
Shock absorber as-
sembly
Check operation and shock ab-
sorber for oil leakage.
√√√√
16 * Autolube pump
Check operation.
Bleed if necessary.
√√√
17
Final transmission
oil
Check vehicle for oil leakage. √√
Change. √√√
18 * V-belt Replace. Every 10000 km (6000 mi)
19 *
Front and rear brake
switches
Check operation. √√√√√√
20
Moving parts and
cables
Lubricate. √√√√√
NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi)
6000 km
(3500 mi)
12000 km
(7000 mi)
18000 km
(10500 mi)
24000 km
(14000 mi)
U2B6E1E0.book Page 4 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-5
6
EAUM2070
TIP
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
Hydraulic brake service
Regularly check and, if necessary, correct the brake fluid level.
Every two years change the brake fluid.
Replace the brake hoses every four years and if cracked or damaged.
21 * Throttle grip
Check operation.
Check throttle grip free play, and
adjust if necessary.
Lubricate cable and grip housing.
√√√√√
22 *
Lights, signals and
switches
Check operation.
Adjust headlight beam.
√√√√√√
NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi)
6000 km
(3500 mi)
12000 km
(7000 mi)
18000 km
(10500 mi)
24000 km
(14000 mi)
U2B6E1E0.book Page 5 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-6
6
EAU18722
Removing and installing the
cowling and panels
The cowling and panels shown need to
be removed to perform some of the
maintenance jobs described in this
chapter. Refer to this section each time
the cowling or a panel needs to be re-
moved and installed.
EAU18790
Cowling A
To remove the cowling
Remove the screws, and then take the
cowling off.
To install the cowling
Place the cowling in the original posi-
tion, and then install the screws.
EAU19272
Panel A
To remove the panel
Remove the screw, and then pull out-
ward on the areas shown.
To install the panel
Place the panel in the original position,
and then install the screw.
EAU19210
Panel B
To remove the panel
Remove the screws, and then take the
panel off.
To install the panel
Place the panel in the original position,
and then install the screws.
1. Cowling A
2. Screw
2
1
ZAUM0564
1. Panel A
2. Screw
1
2
ZAUM0565
1. Screw
2. Panel B
1
2
ZAUM0566
U2B6E1E0.book Page 6 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-7
6
EAU19622
Checking the spark plug
The spark plug is an important engine
component, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode, it
should be removed and checked in ac-
cordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plug can re-
veal the condition of the engine.
The porcelain insulator around the cen-
ter electrode of the spark plug should
be a medium-to-light tan (the ideal color
when the vehicle is ridden normally). If
the spark plug shows a distinctly differ-
ent color, the engine could be operating
improperly. Do not attempt to diagnose
such problems yourself. Instead, have
a Yamaha dealer check the vehicle.
If the spark plug shows signs of elec-
trode erosion and excessive carbon or
other deposits, it should be replaced.
Before installing a spark plug, the spark
plug gap should be measured with a
wire thickness gauge and, if necessary,
adjusted to specification.
Clean the surface of the spark plug
gasket and its mating surface, and then
wipe off any grime from the spark plug
threads.
TIP
If a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4–1/2 turn
past finger tight. However, the spark
plug should be tightened to the speci-
fied torque as soon as possible.
Specified spark plug:
NGK/BR8HS
1. Spark plug gap
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Tightening torque:
Spark plug:
20 Nm (2.0 m·kgf, 14 ft·lbf)
1
ZAUM0037
U2B6E1E0.book Page 7 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-8
6
EAU20066
Final transmission oil
The final transmission case must be
checked for oil leakage before each
ride. If any leakage is found, have a
Yamaha dealer check and repair the
scooter. In addition, the final transmis-
sion oil must be changed as follows at
the intervals specified in the periodic
maintenance and lubrication chart.
1. Start the engine, warm up the final
transmission oil by riding the
scooter for several minutes, and
then stop the engine.
2. Place the scooter on the center-
stand.
3. Place an oil pan under the final
transmission case to collect the
used oil.
4. Remove the final transmission oil
filler cap and its O-ring from the fi-
nal transmission case.
5. Remove the final transmission oil
drain bolt and its gasket to drain
the oil from the final transmission
case.
6. Install the final transmission oil
drain bolt and its new gasket, and
then tighten the bolt to the speci-
fied torque.
7. Refill with the specified amount of
the recommended final transmis-
sion oil. WARNING! Make sure
that no foreign material enters
the final transmission case.
Make sure that no oil gets on the
tire or wheel.
[EWA11311]
8. Install the final transmission oil fill-
er cap and its new O-ring, and then
tighten the oil filler cap.
9. Check the final transmission case
for oil leakage. If oil is leaking,
check for the cause.
1. Final transmission oil drain bolt
2. Final transmission oil filler cap
Tightening torque:
Final transmission oil drain bolt:
17 Nm (1.7 m·kgf, 12 ft·lbf)
1
2
ZAUM0153
Recommended final transmission
oil:
See page 8-1.
Oil quantity:
0.11 L (0.12 US qt, 0.10 Imp.qt)
U2B6E1E0.book Page 8 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-9
6
EAUM1642
Cleaning the air filter element
The air filter element should be cleaned
at the intervals specified in the periodic
maintenance and lubrication chart.
Clean the air filter element more fre-
quently if you are riding in unusually
wet or dusty areas.
1. Remove the air filter case cover by
removing the screws.
2. Pull the air filter element out, clean
it with solvent, and then squeeze
the remaining solvent out.
WARNING! Use only a dedicat-
ed parts cleaning solvent. To
avoid the risk of fire or explo-
sion, do not use gasoline or sol-
vents with a low flash point.
[EWA10431] NOTICE: To avoid dam-
aging the foam material, handle
it gently and carefully, and do
not twist or wring it.
[ECA10511]
3. Apply oil of the recommended type
to the entire surface of the ele-
ment, and then squeeze the ex-
cess oil out.
TIP
The air filter element should be wet but
not dripping.
4. Insert the element into the air filter
case. NOTICE: Make sure that
the air filter element is properly
seated in the air filter case. The
engine should never be operat-
ed without the air filter element
installed, otherwise the pis-
ton(s) and/or cylinder(s) may
become excessively worn.
[ECA10481]
5. Install the air filter case cover by in-
stalling the screws.
1. Air filter case cover
1
ZAUM0567
1. Air filter element
1
ZAUM0318
1
4
3
2
ZAUM0156
Recommended oil:
Foam air filter oil
U2B6E1E0.book Page 9 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-10
6
EAU21300
Adjusting the carburetor
The carburetor is an important part of
the engine and requires very sophisti-
cated adjustment. Therefore, all carbu-
retor adjustments should be left to a
Yamaha dealer, who has the neces-
sary professional knowledge and expe-
rience.
EAU21384
Checking the throttle grip free
play
The throttle grip free play should mea-
sure 1.5–3.0 mm (0.06–0.12 in) at the
inner edge of the throttle grip. Periodi-
cally check the throttle grip free play
and, if necessary, have a Yamaha deal-
er adjust it.
EAU21876
Tires
Tires are the only contact between the
vehicle and the road. Safety in all con-
ditions of riding depends on a relatively
small area of road contact. Therefore, it
is essential to maintain the tires in good
condition at all times and replace them
at the appropriate time with the speci-
fied tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
1. Throttle grip free play
1
ZAUM0051
ZAUM0053
U2B6E1E0.book Page 10 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
6
WARNING
EWA10503
Operation of this vehicle with im-
proper tire pressure may cause se-
vere injury or death from loss of
control.
The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).
The tire air pressure must be ad-
justed in accordance with the
riding speed and with the total
weight of rider, passenger, car-
go, and accessories approved
for this model.
WARNING
EWA10511
Never overload your vehicle. Opera-
tion of an overloaded vehicle could
cause an accident.
Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail or
glass fragments in it, or if the sidewall is
cracked, have a Yamaha dealer re-
place the tire immediately.
TIP
The tire tread depth limits may differ
from country to country. Always comply
with the local regulations.
Tire air pressure (measured on cold
tires):
0–90 kg (0–198 lb):
Front:
150 kPa (1.50 kgf/cm², 22 psi)
Rear:
150 kPa (1.50 kgf/cm², 22 psi)
90–185 kg (198–408 lb):
Front:
150 kPa (1.50 kgf/cm², 22 psi)
Rear:
150 kPa (1.50 kgf/cm², 22 psi)
Maximum load*:
185 kg (408 lb)
* Total weight of rider, passenger, car-
go and accessories
1. Tire tread depth
2. Tire sidewall
Minimum tire tread depth (front and
rear):
1.6 mm (0.06 in)
1
2
ZAUM0054
U2B6E1E0.book Page 11 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-12
6
Tire information
This model is equipped with tubeless
tires.
Tires age, even if they have not been
used or have only been used occasion-
ally. Cracking of the tread and sidewall
rubber, sometimes accompanied by
carcass deformation, is an evidence of
ageing. Old and aged tires shall be
checked by tire specialists to ascertain
their suitability for further use.
After extensive tests, only the tires list-
ed below have been approved for this
model by Yamaha Motor Co., Ltd.
WARNING
EWA10471
Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the vehi-
cle with excessively worn tires
decreases riding stability and
can lead to loss of control.
The replacement of all wheel
and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl-
edge and experience to do so.
Ride at moderate speeds after
changing a tire since the tire
surface must first be “broken
in” for it to develop its optimal
characteristics.
Front tire:
Size:
CW50 120/90-10 57L
CW50L 120/70-12 51L
CW50N 120/90-10 57L
Manufacturer/model:
CW50 PIRELLI / SL90
CW50L PIRELLI / EVO21
CW50N PIRELLI / SL90
Rear tire:
Size:
CW50 150/80-10 65L
CW50L 130/70-12 56L
CW50N 150/80-10 65L
Manufacturer/model:
CW50 PIRELLI / SL90
CW50L PIRELLI / EVO22
CW50N PIRELLI / SL90
U2B6E1E0.book Page 12 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-13
6
EAU21962
Cast wheels
To maximize the performance, durabil-
ity, and safe operation of your vehicle,
note the following points regarding the
specified wheels.
The wheel rims should be checked
for cracks, bends, warpage or oth-
er damage before each ride. If any
damage is found, have a Yamaha
dealer replace the wheel. Do not
attempt even the smallest repair to
the wheel. A deformed or cracked
wheel must be replaced.
The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced. An
unbalanced wheel can result in
poor performance, adverse han-
dling characteristics, and a short-
ened tire life.
EAUT1221
Checking the front brake lever
free play
The brake lever free play should mea-
sure 10.0–20.0 mm (0.39–0.79 in) as
shown. Periodically check the brake le-
ver free play and, if necessary, have a
Yamaha dealer check the brake sys-
tem.
WARNING
EWA10641
An incorrect brake lever free play in-
dicates a hazardous condition in the
brake system. Do not operate the ve-
hicle until the brake system has
been checked or repaired by a
Yamaha dealer.
EAU22170
Adjusting the rear brake lever
free play
The brake lever free play should mea-
sure 10.0–20.0 mm (0.39–0.79 in) as
shown. Periodically check the brake le-
ver free play and, if necessary, adjust it
as follows.
To increase the brake lever free play,
turn the adjusting nut at the brake shoe
plate in direction (a). To decrease the
brake lever free play, turn the adjusting
nut in direction (b).
1. Front brake lever free play
1
ZAUM0107
1. Rear brake lever free play
1
ZAUM0108
U2B6E1E0.book Page 13 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
6
WARNING
EWA10650
If proper adjustment cannot be ob-
tained as described, have a Yamaha
dealer make this adjustment.
EAU22380
Checking the front brake pads
and rear brake shoes
The front brake pads and the rear brake
shoes must be checked for wear at the
intervals specified in the periodic main-
tenance and lubrication chart.
EAU22400
Front brake pads
Check each front brake pad for dam-
age and measure the lining thickness. If
a brake pad is damaged or if the lining
thickness is less than 3.1 mm (0.12 in),
have a Yamaha dealer replace the
brake pads as a set.
EAU22540
Rear brake shoes
The rear brake is provided with a wear
indicator, which allows you to check the
brake shoe wear without having to dis-
assemble the brake. To check the
brake shoe wear, check the position of
the wear indicator while applying the
brake. If a brake shoe has worn to the
point that the wear indicator reaches
the wear limit line, have a Yamaha
dealer replace the brake shoes as a
set.
(a)
(b)
ZAUM0320
1. Lining thickness
1
ZAUM0243
1. Wear indicator
2. Wear limit line
1
2
ZAUM0059
U2B6E1E0.book Page 14 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-15
6
EAU32345
Checking the brake fluid level
Before riding, check that the brake fluid
is above the minimum level mark.
Check the brake fluid level with the top
of the reservoir level. Replenish the
brake fluid if necessary.
WARNING
EWA15990
Improper maintenance can result in
loss of braking ability. Observe
these precautions:
Insufficient brake fluid may al-
low air to enter the brake sys-
tem, reducing braking
performance.
Clean the filler cap before re-
moving. Use only DOT 4 brake
fluid from a sealed container.
Use only the specified brake flu-
id; otherwise, the rubber seals
may deteriorate, causing leak-
age.
Refill with the same type of
brake fluid. Adding a brake fluid
other than DOT 4 may result in a
harmful chemical reaction.
Be careful that water does not
enter the brake fluid reservoir
when refilling. Water will signifi-
cantly lower the boiling point of
the fluid and may result in vapor
lock.
NOTICE
ECA17640
Brake fluid may damage painted sur-
faces or plastic parts. Always clean
up spilled fluid immediately.
As the brake pads wear, it is normal for
the brake fluid level to gradually go
down. A low brake fluid level may indi-
cate worn brake pads and/or brake sys-
tem leakage; therefore, be sure to
check the brake pads for wear and the
brake system for leakage. If the brake
fluid level goes down suddenly, have a
Yamaha dealer check the cause before
further riding.
1. Minimum level mark
Specified brake fluid:
DOT 4
1
ZAUM0900
U2B6E1E0.book Page 15 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
6
EAUM1360
Changing the brake fluid
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the periodic maintenance and lubrica-
tion chart. In addition, have the brake
hose replaced every four years or
whenever it is damaged or leaking.
EAU50800
Checking and lubricating the
cables
The operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubricat-
ed if necessary. If a cable is damaged
or does not move smoothly, have a
Yamaha dealer check or replace it.
WARNING! Damage to the outer
housing of cables may result in in-
ternal rusting and cause interfer-
ence with cable movement. Replace
damaged cables as soon as possi-
ble to prevent unsafe conditions.
[EWA10711]
EAU23114
Checking and lubricating the
throttle grip and cable
The operation of the throttle grip should
be checked before each ride. In addi-
tion, the cable should be lubricated by a
Yamaha dealer at the intervals speci-
fied in the periodic maintenance chart.
The throttle cable is equipped with a
rubber cover. Make sure that the cover
is securely installed. Even though the
cover is installed correctly, it does not
completely protect the cable from water
entry. Therefore, use care not to pour
water directly onto the cover or cable
when washing the vehicle. If the cable
or cover becomes dirty, wipe clean with
a moist cloth.
Recommended lubricant:
Yamaha Chain and Cable Lube or 4-
stroke engine oil
U2B6E1E0.book Page 16 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-17
6
EAU43642
Lubricating the front and rear
brake levers
The pivoting points of the front and rear
brake levers must be lubricated at the
intervals specified in the periodic main-
tenance and lubrication chart.
Front brake lever
Rear brake lever
EAU23192
Checking and lubricating the
centerstand
The operation of the centerstand
should be checked before each ride,
and the pivots and metal-to-metal con-
tact surfaces should be lubricated if
necessary.
WARNING
EWA11301
If the centerstand does not move up
and down smoothly, have a Yamaha
dealer check or repair it. Otherwise,
the centerstand could contact the
ground and distract the operator, re-
sulting in a possible loss of control.
Recommended lubricants:
Front brake lever:
Silicone grease
Rear brake lever:
Lithium-soap-based grease
1. Centerstand
1
ZAUM0455
U2B6E1E0.book Page 17 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-18
6
EAU23272
Checking the front fork
The condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic main-
tenance and lubrication chart.
To check the condition
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion. WARNING! To avoid injury,
securely support the vehicle so
there is no danger of it falling
over.
[EWA10751]
2. While applying the front brake,
push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
NOTICE
ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it.
Recommended lubricant:
Lithium-soap-based grease
ZAUM0569
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-19
6
EAU45511
Checking the steering
Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place the vehicle on the center-
stand. WARNING! To avoid inju-
ry, securely support the vehicle
so there is no danger of it falling
over.
[EWA10751]
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
EAU23291
Checking the wheel bearings
The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer check
the wheel bearings.
EAUM1404
Battery
A poorly maintained battery will corrode
and discharge quickly. The electrolyte
level, battery lead connections and
breather hose routing should be
checked before each ride and at the in-
tervals specified in the periodic mainte-
nance and lubrication chart.
To check the electrolyte level
1. Place the scooter on a level sur-
face and hold it in an upright posi-
tion.
ZAUM0323
1. Battery
2. Fuse
1
2
1
2
ZAUM0570
U2B6E1E0.book Page 19 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-20
6
TIP
Make sure that the scooter is posi-
tioned straight up when checking the
electrolyte level.
2. Remove panel B. (See page 6-6.)
3. Check the electrolyte level in the
battery.
TIP
The electrolyte should be between the
minimum and maximum level marks.
4. If the electrolyte is at or below the
minimum level mark, add distilled
water to raise it to the maximum
level mark. NOTICE: Use only
distilled water, as tap water con-
tains minerals that are harmful
to the battery.
[ECA10611]
WARNING
EWA10760
Electrolyte is poisonous and
dangerous since it contains sul-
furic acid, which causes severe
burns. Avoid any contact with
skin, eyes or clothing and al-
ways shield your eyes when
working near batteries. In case
of contact, administer the fol-
lowing FIRST AID.
EXTERNAL: Flush with plenty
of water.
INTERNAL: Drink large quan-
tities of water or milk and im-
mediately call a physician.
EYES: Flush with water for 15
minutes and seek prompt
medical attention.
Batteries produce explosive hy-
drogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and pro-
vide sufficient ventilation when
charging it in an enclosed
space.
KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OF
CHILDREN.
5. Check and, if necessary, tighten
the battery lead connections and
correct the breather hose routing.
To store the battery
1. If the scooter will not be used for
more than one month, remove the
battery, fully charge it, and then
place it in a cool, dry place.
NOTICE: When removing the
battery, be sure the key is
turned to ”, then disconnect
the negative lead before discon-
necting the positive lead.
[ECA16302]
2. If the battery will be stored for more
than two months, check the specif-
ic gravity of the electrolyte at least
once a month and fully charge the
battery whenever necessary.
3. Fully charge the battery before in-
stallation. NOTICE: When install-
ing the battery, be sure the key
is turned to ”, then connect
the positive lead before con-
necting the negative lead.
[ECA16840]
1. Maximum level mark
2. Minimum level mark
1
2
+
UPPER
LOWER
ZAUM0106
U2B6E1E0.book Page 20 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-21
6
4. After installation, make sure that
the battery leads are properly con-
nected to the battery terminals and
that the breather hose is properly
routed, in good condition, and not
obstructed. NOTICE: If the
breather hose is positioned in
such a way that the frame is ex-
posed to electrolyte or gas ex-
pelled from the battery, the
frame could suffer structural
and external damages.
[ECA10601]
EAU23503
Replacing the fuse
The fuse holder is located behind panel
B. (See page 6-6.)
If the fuse is blown, replace it as fol-
lows.
1. Turn the key to ” and turn off all
electrical circuits.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a higher amperage
rating than recommended to
avoid causing extensive dam-
age to the electrical system and
possibly a fire.
[EWA15131]
3. Turn the key to ” and turn on
the electrical circuits to check if the
devices operate.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
1. Battery
2. Fuse
1
2
1
2
ZAUM0570
Specified fuse:
7.5 A
U2B6E1E0.book Page 21 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-22
6
EAUM2930
Replacing a headlight bulb
If a headlight bulb burns out, replace it
as follows.
1. Place the scooter on the center-
stand.
2. Remove cowling A. (See page
6-6.)
3. Unhook the headlight bulb holder,
and then remove the burnt out
bulb.
4. Place a new bulb into position, and
then secure it with the bulb holder.
5. Install the cowling.
6. Have a Yamaha dealer adjust the
headlight beam if necessary.
EAU24133
Replacing the tail/brake light
bulb
1. Remove the tail/brake light lens by
removing the screws.
2. Remove the burnt-out bulb by
pushing it in and turning it counter-
clockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screws. NOTICE: Do not over-
tighten the screws, otherwise
the lens may break.
[ECA10681]
1. Unhook.
2. Headlight bulb
3. Headlight bulb holder
1
3
2
ZAUM0901
1. Screw
1
ZAUM0573
1. Tail/brake light bulb
1
ZAUM0904
U2B6E1E0.book Page 22 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-23
6
EAU24204
Replacing a turn signal light
bulb
1. Remove the turn signal light lens
by removing the screw.
2. Remove the burnt-out bulb by
pushing it in and turning it counter-
clockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screw. NOTICE: Do not over-
tighten the screw, otherwise the
lens may break.
[ECA11191]
EAU25861
Troubleshooting
Although Yamaha scooters receive a
thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting chart
represents a quick and easy procedure
for checking these vital systems your-
self. However, should your scooter re-
quire any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the scooter prop-
erly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look like
Yamaha parts, but they are often inferi-
or, have a shorter service life and can
lead to expensive repair bills.
WARNING
EWA15141
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the ar-
ea, including pilot lights from water
heaters or furnaces. Gasoline or
gasoline vapors can ignite or ex-
plode, causing severe injury or
property damage.
1. Screw
1
ZAUM0589
U2B6E1E0.book Page 23 Wednesday, November 7, 2012 11:56 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-24
6
EAU25963
Troubleshooting chart
Check the fuel level in
the fuel tank.
1. Fuel
There is
enough fuel.
There is
no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the
electric starter.
2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.
3. Ignition
Wet
Dry
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start. Have a
Yamaha dealer check the vehicle.
The engine does not start.
Check the battery.
Open the throttle halfway and
operate the electric starter.
Operate the
electric starter.
4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.
Check fluid, recharge,
check connections.
U2B6E1E0.book Page 24 Wednesday, November 7, 2012 11:56 AM
SCOOTER CARE AND STORAGE
7-1
7
EAU37833
Matte color caution
NOTICE
ECA15192
Some models are equipped with
matte colored finished parts. Be
sure to consult a Yamaha dealer for
advice on what products to use be-
fore cleaning the vehicle. Using a
brush, harsh chemical products or
cleaning compounds when cleaning
these parts will scratch or damage
their surface. Wax also should not
be applied to any matte colored fin-
ished parts.
EAU26094
Care
While the open design of a scooter re-
veals the attractiveness of the technol-
ogy, it also makes it more vulnerable.
Rust and corrosion can develop even if
high-quality components are used. A
rusty exhaust pipe may go unnoticed
on a car, however, it detracts from the
overall appearance of a scooter. Fre-
quent and proper care does not only
comply with the terms of the warranty,
but it will also keep your scooter looking
good, extend its life and optimize its
performance.
Before cleaning
1. Cover the muffler outlet with a
plastic bag after the engine has
cooled down.
2. Make sure that all caps and covers
as well as all electrical couplers
and connectors, including the
spark plug cap, are tightly in-
stalled.
3. Remove extremely stubborn dirt,
like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such prod-
ucts onto seals, gaskets and wheel
axles. Always rinse the dirt and de-
greaser off with water.
Cleaning
NOTICE
ECA10783
Avoid using strong acidic wheel
cleaners, especially on spoked
wheels. If such products are
used on hard-to-remove dirt, do
not leave the cleaner on the af-
fected area any longer than in-
structed. Also, thoroughly rinse
the area off with water, immedi-
ately dry it, and then apply a cor-
rosion protection spray.
Improper cleaning can damage
plastic parts (such as cowlings,
panels, windshields, headlight
lenses, meter lenses, etc.) and
the mufflers. Use only a soft,
clean cloth or sponge with wa-
ter to clean plastic. However, if
the plastic parts cannot be thor-
oughly cleaned with water, di-
luted mild detergent with water
may be used. Be sure to rinse
U2B6E1E0.book Page 1 Wednesday, November 7, 2012 11:56 AM
SCOOTER CARE AND STORAGE
7-2
7
off any detergent residue using
plenty of water, as it is harmful
to plastic parts.
Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust re-
movers or inhibitors, brake flu-
id, antifreeze or electrolyte.
Do not use high-pressure wash-
ers or steam-jet cleaners since
they cause water seepage and
deterioration in the following ar-
eas: seals (of wheel and swing-
arm bearings, fork and brakes),
electric components (couplers,
connectors, instruments,
switches and lights), breather
hoses and vents.
For scooters equipped with a
windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or
scratching. Some cleaning com-
pounds for plastic may leave
scratches on the windshield.
Test the product on a small hid-
den part of the windshield to
make sure that it does not leave
any marks. If the windshield is
scratched, use a quality plastic
polishing compound after
washing.
After normal use
Remove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt
and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.
After riding in the rain, near the sea or
on salt-sprayed roads
Since sea salt or salt sprayed on the
roads during winter are extremely cor-
rosive in combination with water, carry
out the following steps after each ride in
the rain, near the sea or on salt-
sprayed roads.
TIP
Salt sprayed on roads in the winter may
remain well into spring.
1. Clean the scooter with cold water
and a mild detergent after the en-
gine has cooled down. NOTICE:
Do not use warm water since it
increases the corrosive action
of the salt.
[ECA10791]
2. Apply a corrosion protection spray
on all metal, including chrome- and
nickel-plated, surfaces to prevent
corrosion.
After cleaning
1. Dry the scooter with a chamois or
an absorbing cloth.
2. Use a chrome polish to shine
chrome, aluminum and stainless-
steel parts, including the exhaust
system. (Even the thermally in-
duced discoloring of stainless-
steel exhaust systems can be re-
moved through polishing.)
U2B6E1E0.book Page 2 Wednesday, November 7, 2012 11:56 AM
SCOOTER CARE AND STORAGE
7-3
7
3. To prevent corrosion, it is recom-
mended to apply a corrosion pro-
tection spray on all metal,
including chrome- and nickel-plat-
ed, surfaces.
4. Use spray oil as a universal clean-
er to remove any remaining dirt.
5. Touch up minor paint damage
caused by stones, etc.
6. Wax all painted surfaces.
7. Let the scooter dry completely be-
fore storing or covering it.
WARNING
EWA10942
Contaminants on the brakes or tires
can cause loss of control.
Make sure that there is no oil or
wax on the brakes or tires. If
necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or ac-
etone, and wash the tires with
warm water and a mild deter-
gent.
Before operating the scooter
test its braking performance
and cornering behavior.
NOTICE
ECA10800
Apply spray oil and wax spar-
ingly and make sure to wipe off
any excess.
Never apply oil or wax to any
rubber and plastic parts, but
treat them with a suitable care
product.
Avoid using abrasive polishing
compounds as they will wear
away the paint.
TIP
Consult a Yamaha dealer for ad-
vice on what products to use.
Washing, rainy weather or humid
climates can cause the headlight
lens to fog. Turning the headlight
on for a short period of time will
help remove the moisture from the
lens.
EAU26303
Storage
Short-term
Always store your scooter in a cool, dry
place and, if necessary, protect it
against dust with a porous cover. Be
sure the engine and the exhaust sys-
tem are cool before covering the scoot-
er.
NOTICE
ECA10820
Storing the scooter in a poorly
ventilated room or covering it
with a tarp, while it is still wet,
will allow water and humidity to
seep in and cause rust.
To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong chemi-
cals are stored.
Long-term
Before storing your scooter for several
months:
1. Follow all the instructions in the
“Care” section of this chapter.
U2B6E1E0.book Page 3 Wednesday, November 7, 2012 11:56 AM
SCOOTER CARE AND STORAGE
7-4
7
2. Drain the carburetor float chamber
by loosening the drain bolt; this will
prevent fuel deposits from building
up. Pour the drained fuel into the
fuel tank.
3. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
4. Perform the following steps to pro-
tect the cylinder, piston rings, etc.
from corrosion.
a. Remove the spark plug cap
and spark plug.
b. Pour a teaspoonful of engine oil
into the spark plug bore.
c. Install the spark plug cap onto
the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder wall with oil.)
WARNING! To prevent dam-
age or injury from sparking,
make sure to ground the
spark plug electrodes while
turning the engine over.
[EWA10951]
e. Remove the spark plug cap
from the spark plug, and then
install the spark plug and the
spark plug cap.
5. Lubricate all control cables and the
pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.
6. Check and, if necessary, correct
the tire air pressure, and then lift
the scooter so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
7. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
8. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place [less
than 0 °C (30 °F) or more than 30
°C (90 °F)]. For more information
on storing the battery, see page
6-19.
TIP
Make any necessary repairs before
storing the scooter.
U2B6E1E0.book Page 4 Wednesday, November 7, 2012 11:56 AM
SPECIFICATIONS
8-1
8
Dimensions:
Overall length:
1685 mm (66.3 in)
Overall width:
CW50 675 mm (26.6 in)
CW50L 675 mm (26.6 in)
CW50N 718 mm (28.3 in)
Overall height:
CW50 1058 mm (41.7 in)
CW50L 1058 mm (41.7 in)
CW50N 1070 mm (42.1 in)
Seat height:
768 mm (30.2 in)
Wheelbase:
1172 mm (46.1 in)
Ground clearance:
124 mm (4.88 in)
Minimum turning radius:
1773 mm (69.8 in)
Weight:
Curb weight:
82 kg (181 lb)
Engine:
Engine type:
Air cooled 2-stroke
Cylinder arrangement:
Single cylinder
Displacement:
49 cm³
Bore × stroke:
40.0 × 39.2 mm (1.57 × 1.54 in)
Compression ratio:
7.22 : 1
Starting system:
Electric starter and kickstarter
Lubrication system:
Separate lubrication (Yamaha autolube)
Engine oil:
Type:
YAMALUBE 2S or 2-stroke engine oil
(JASO FC grade) or (ISO EG-C or EG-D
grade)
Engine oil quantity:
Quantity:
1.10 L (1.16 US qt, 0.97 Imp.qt)
Final transmission oil:
Type:
SAE 10W-30 type SE motor oil
Quantity:
0.11 L (0.12 US qt, 0.10 Imp.qt)
Air filter:
Air filter element:
Wet element
Fuel:
Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
5.3 L (1.40 US gal, 1.17 Imp.gal)
Fuel reserve amount:
CW50 1.2 L (0.32 US gal, 0.26 Imp.gal)
CW50L 1.2 L (0.32 US gal, 0.26 Imp.gal)
CW50N 1.5 L (0.40 US gal, 0.33 Imp.gal)
Carburetor:
Type × quantity:
PYA-12 x 1
Spark plug(s):
Manufacturer/model:
NGK/BR8HS
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Clutch:
Clutch type:
Dry, centrifugal automatic
Transmission:
Primary reduction ratio:
1
Final drive:
Gear
Secondary reduction ratio:
12.923 (52/13x42/13)
Transmission type:
V-belt automatic
Chassis:
Frame type:
Underbone
Caster angle:
27.00 °
Trail:
90 mm (3.5 in)
Front tire:
Type:
Tubeless
Size:
CW50 120/90-10 57L
CW50L 120/70-12 51L
CW50N 120/90-10 57L
U2B6E1E0.book Page 1 Wednesday, November 7, 2012 11:56 AM
SPECIFICATIONS
8-2
8
Manufacturer/model:
CW50 PIRELLI / SL90
CW50L PIRELLI / EVO21
CW50N PIRELLI / SL90
Rear tire:
Type:
Tubeless
Size:
CW50 150/80-10 65L
CW50L 130/70-12 56L
CW50N 150/80-10 65L
Manufacturer/model:
CW50 PIRELLI / SL90
CW50L PIRELLI / EVO22
CW50N PIRELLI / SL90
Loading:
Maximum load:
185 kg (408 lb)
(Total weight of rider, passenger, cargo and
accessories)
Tire air pressure (measured on cold
tires):
Loading condition:
0–90 kg (0–198 lb)
Front:
150 kPa (1.50 kgf/cm², 22 psi)
Rear:
150 kPa (1.50 kgf/cm², 22 psi)
Loading condition:
90–185 kg (198–408 lb)
Front:
150 kPa (1.50 kgf/cm², 22 psi)
Rear:
150 kPa (1.50 kgf/cm², 22 psi)
Front wheel:
Wheel type:
Cast wheel
Rim size:
CW50 10xMT3.00
CW50L 12xMT3.50
CW50N 10xMT3.00
Rear wheel:
Wheel type:
Cast wheel
Rim size:
CW50 10xMT4.00
CW50L 12xMT3.50
CW50N 10xMT4.00
Front brake:
Type:
Single disc brake
Operation:
Right hand operation
Specified brake fluid:
DOT 4
Rear brake:
Type:
Drum brake
Operation:
Left hand operation
Front suspension:
Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
70.0 mm (2.76 in)
Rear suspension:
Type:
Unit swing
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
CW50 70.0 mm (2.76 in)
CW50L 67.0 mm (2.64 in)
CW50N 70.0 mm (2.76 in)
Electrical system:
Ignition system:
DC CDI
Charging system:
AC magneto
Battery:
Model:
CB4-LB(GS), YB4L-B(YUASA)
Voltage, capacity:
12 V, 4.0 Ah
Headlight:
Bulb type:
Incandescence
Bulb voltage, wattage × quantity:
Headlight:
12 V, 25.0 W/25.0 W × 2
Tail/brake light:
12 V, 5.0 W/21.0 W × 1
Front turn signal light:
12 V, 10.0 W × 2
Rear turn signal light:
12 V, 10.0 W × 2
Meter lighting:
CW50 12 V, 1.2 W × 3
CW50L 12 V, 1.2 W × 3
U2B6E1E0.book Page 2 Wednesday, November 7, 2012 11:56 AM
SPECIFICATIONS
8-3
8
Meter lighting:
CW50N EL (Electroluminescent)
High beam indicator light:
CW50 12 V, 2.0 W × 1
CW50L 12 V, 2.0 W × 1
High beam indicator light:
CW50N LED
Oil level warning light:
CW50 12 V, 2.0 W × 1
CW50L 12 V, 2.0 W × 1
Oil level warning light:
CW50N LED
Turn signal indicator light:
CW50 12 V, 2.0 W × 2
CW50L 12 V, 2.0 W × 2
Turn signal indicator light:
CW50N LED x1
Fuel level warning light:
CW50N LED
Fuses:
Main fuse:
7.5 A
U2B6E1E0.book Page 3 Wednesday, November 7, 2012 11:56 AM
CONSUMER INFORMATION
9-1
9
EAU48612
Identification numbers
Record the vehicle identification num-
ber and model label information in the
spaces provided below for assistance
when ordering spare parts from a
Yamaha dealer or for reference in case
the vehicle is stolen.
VEHICLE IDENTIFICATION
NUMBER:
MODEL LABEL INFORMATION:
EAU26410
Vehicle identification number
The vehicle identification number is
stamped into the frame.
TIP
The vehicle identification number is
used to identify your vehicle and may
be used to register it with the licensing
authority in your area.
EAU26490
Model label
The model label is affixed to the bottom
of the seat. (See page 3-9.) Record the
information on this label in the space
provided. This information will be need-
ed when ordering spare parts from a
Yamaha dealer.
1. Vehicle identification number
1
ZAUM0327
1. Model label
ZAUM0903
U2B6E1E0.book Page 1 Wednesday, November 7, 2012 11:56 AM
INDEX
A
Acceleration and deceleration ................ 5-2
Air filter element, cleaning ...................... 6-9
Anti-theft device housing ...................... 3-10
B
Battery .................................................. 6-19
Brake fluid, changing ............................ 6-16
Brake fluid level, checking .................... 6-15
Brake lever, front .................................... 3-5
Brake lever, rear ..................................... 3-6
Brake levers, lubricating ....................... 6-17
Brake pads and shoes, checking.......... 6-14
Braking ................................................... 5-3
C
Cables, checking and lubricating.......... 6-16
Carburetor,adjusting ............................. 6-10
Care........................................................ 7-1
Catalytic converter.................................. 3-8
Centerstand, checking and
lubricating ........................................... 6-17
Cowling and panels, removing and
installing ............................................... 6-6
D
Dimmer switch ........................................ 3-5
E
Engine break-in ...................................... 5-4
Engine oil................................................ 3-8
F
Final transmission oil .............................. 6-8
Front brake lever free play, checking ... 6-13
Front fork, checking .............................. 6-18
Fuel......................................................... 3-7
Fuel and 2-stroke engine oil tank caps... 3-6
Fuel consumption, tips for reducing........ 5-3
Fuel gauge (CW50/CW50L)....................3-4
Fuel level warning light (CW50N)............3-3
Fuse, replacing......................................6-21
H
Handlebar switches .................................3-5
Headlight bulb, replacing.......................6-22
High beam indicator light.........................3-2
Horn switch .............................................3-5
I
Identification numbers .............................9-1
Indicator lights and warning lights ...........3-2
K
Kickstarter ...............................................3-9
L
Luggage hook .......................................3-11
M
Main switch/steering lock ........................3-1
Maintenance and lubrication, periodic.....6-3
Maintenance, emission control system ...6-2
Matte color, caution.................................7-1
Model label..............................................9-1
O
Oil level warning light ..............................3-2
P
Parking....................................................5-4
Part locations ..........................................2-1
R
Rear brake lever free play, adjusting ....6-13
S
Safe-riding points ....................................1-5
Safety information ...................................1-1
Seat.........................................................3-9
Securing bracket .....................................3-9
Shock absorber assembly, adjusting
(CW50L model only)........................... 3-10
Spark plug, checking .............................. 6-7
Specifications.......................................... 8-1
Speedometer unit (CW50/CW50L) ......... 3-3
Speedometer unit (CW50N) ................... 3-4
Starting a cold engine ............................. 5-1
Starting off .............................................. 5-2
Start switch ............................................. 3-5
Steering, checking ................................ 6-19
Storage ................................................... 7-3
T
Tail/brake light bulb, replacing .............. 6-22
Throttle grip and cable, checking and
lubricating ........................................... 6-16
Throttle grip free play, checking............ 6-10
Tires...................................................... 6-10
Troubleshooting .................................... 6-23
Troubleshooting chart ........................... 6-24
Turn signal indicator light (CW50N)........ 3-2
Turn signal indicator lights
(CW50/CW50L) .................................... 3-2
Turn signal light bulb, replacing ............ 6-23
Turn signal switch ................................... 3-5
V
Vehicle identification number.................. 9-1
W
Wheel bearings, checking..................... 6-19
Wheels.................................................. 6-13
U2B6E1E0.book Page 1 Wednesday, November 7, 2012 11:56 AM
A5-yoko_Blank.fm Page 1 Thursday, December 8, 2011 2:18 PM
A5-yoko_Blank.fm Page 1 Thursday, December 8, 2011 2:18 PM
PRINTED IN FRANCE
2012.11 (E)
PANTONE285C
MBK Industrie
Z.I. de Rouvroy 02100 Saint Quentin
61

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