Yamaha CW50, CW50L, CW50N User Manual
OWNER’S MANUAL
CW50 / CW50L / CW50N
2B6-F8199-E0
INTRODUCTION
EAU10110
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 regarding 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 owner’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 further 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!
IMPORTANT MANUAL INFORMATION
Particularly important information is distinguished in this manual by the following notations:
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS
INVOLVED!
EAU10150
WARNING
CAUTION:
NOTE:
Failure to follow WARNING instructions could result in severe injury or death
scooter operator, a bystander, or a person inspecting or repairing the scooter.
A CAUTION indicates special precautions that must be taken to avoid damage to
the scooter.
A NOTE provides key information to make procedures easier or clearer.
to the
NOTE:
● This manual should be considered a permanent part of this scooter and should remain with it even if the scooter is sub-
sequently sold.
● Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most
current product information available at the time of printing, there may be minor discrepancies between your scooter and
this manual. If you have any questions concerning this manual, please consult your Yamaha dealer.
EWA10030
WARNING
PLEASE READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE OPERATING THIS SCOOTER.
IMPORTANT MANUAL INFORMATION
EAUM1010
CW50/CW50L/CW50N
OWNER’S MANUAL
©2004 by MBK INDUSTRIE
1st edition, February 2004
All rights reserved
Any reprinting or unauthorized use
without the written permission of
MBK INDUSTRIE
is expressly prohibited.
Printed in France.
TABLE OF CONTENTS
SAFETY INFORMATION ..................1-1
Further safe-riding points ................1-4
DESCRIPTION ..................................2-1
Left view ..........................................2-1
Right view........................................2-2
INSTRUMENT AND CONTROL
FUNCTIONS .......................................3-1
Main switch/steering lock ................3-1
Indicator 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 ..........................3-7
2-stroke engine oil ..........................3-8
Kickstarter .......................................3-8
Securing bracket .............................3-8
Seat ................................................3-9
Anti-theft device housing ................3-9
Luggage hook ...............................3-10
Adjusting the shock
absorber assembly
(CW50L model only) ..................3-10
PRE-OPERATION CHECKS .............4-1
Pre-operation check list ..................4-2
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
MINOR REPAIR ................................. 6-1
Periodic maintenance and
lubrication chart ..........................6-2
Removing and installing the
cowling and panels ..................... 6-5
Checking the spark plug .................6-6
Final transmission oil ......................6-7
Cleaning the air filter element ........6-8
Adjusting the carburetor ................. 6-9
Adjusting the throttle cable
free play ...................................... 6-9
Tires .............................................6-10
Cast wheels .................................. 6-12
Adjusting the front brake lever
free play .................................... 6-12
Adjusting the rear brake lever
free play .................................... 6-12
Checking the front brake pads
and rear brake shoes ............... 6-13
Checking the brake fluid level ...... 6-14
Changing the brake fluid .............. 6-15
Checking and lubricating the
cables ....................................... 6-15
Checking and lubricating the
throttle grip and cable ............... 6-15
Lubricating the front and rear
brake levers .............................. 6-16
Checking and lubricating the
centerstand............................... 6-16
Checking the front fork ................. 6-16
Checking the steering .................. 6-17
Checking the wheel bearings ....... 6-18
Battery ......................................... 6-18
Replacing the fuse ....................... 6-20
Replacing a headlight bulb .......... 6-20
Replacing the tail/brake light
bulb ........................................... 6-21
Replacing a turn signal light
bulb ........................................... 6-22
Troubleshooting ........................... 6-22
Troubleshooting chart .................. 6-23
SCOOTER CARE AND STORAGE... 7-1
Care ............................................... 7-1
Storage .......................................... 7-3
SPECIFICATIONS .............................8-1
CONSUMER INFORMATION.............9-1
Identification numbers ....................9-1
TABLE OF CONTENTS
SAFETY INFORMATION
SCOOTERS ARE SINGLE TRACK
VEHICLES. THEIR SAFE USE AND
1
OPERATION ARE DEPENDENT
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 INSTRUC-
TIONS FROM A COMPETENT
SOURCE ON ALL ASPECTS OF
SCOOTER OPERATION.
● OBSERVE THE WARNINGS AND
MAINTENANCE REQUIREMENTS IN THE OWNER’S MAN-
UAL.
● OBTAIN QUALIFIED TRAINING
IN SAFE AND PROPER RIDING
TECHNIQUES.
● OBTAIN PROFESSIONAL TECH-
NICAL SERVICE AS INDICATED
BY THE OWNER’S MANUAL
AND/OR WHEN MADE NECESSARY BY MECHANICAL CONDITIONS.
EAU10260
Safe riding
● Always make pre-operation
checks. Careful checks may help
prevent an accident.
● This scooter is designed to carry
the operator and passenger.
● The failure of motorists to detect
and recognize scooters in traffic is
the predominating cause of automobile/scooter accidents. Many
accidents have been caused by an
automobile driver who did not see
the scooter. Making yourself conspicuous appears to be very effective in reducing the chance of this
type of accident.
Therefore:
• Wear a brightly colored jacket.
• Use extra caution when ap-
proaching and passing through
intersections, since intersections 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.
● Many accidents involve inexperi-
enced operators. In fact, many operators who have been involved in
accidents do not even have a current driver’s license.
• Make sure that you are qualified
and that you only lend your
scooter to other qualified operators.
• Know your skills and limits.
Staying within your limits may
help you to avoid an accident.
• We recommend that you practice riding your scooter where
there is no traffic until you have
become thoroughly familiar with
the scooter and all of its controls.
● 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
EXCESSIVE SPEED or undercornering (insufficient lean angle for
the speed).
• Always obey the speed limit and
never travel faster than warranted by road and traffic conditions.
1-1
SAFETY INFORMATION
• 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 footboard during
operation to maintain 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 injuries. The use of a safety helmet is the
single most critical factor in the prevention 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 which could delay seeing
a hazard.
● The use of a jacket, substantial
shoes, trousers, gloves, etc., is effective 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.
● Never touch the engine or exhaust
system during or after operation.
They become very hot and can
cause burns. Always wear protective clothing that covers your legs,
ankles, and feet.
● Passengers should also observe
the above precautions.
1-2
Modifications
Modifications made to this scooter not
approved by Yamaha, or the removal of
original equipment, may render the
scooter unsafe for use and may cause
severe personal injury. Modifications
may also make your scooter illegal to
use.
Loading and accessories
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 accessories to your scooter. Use extra care
when riding a scooter that has added
cargo or accessories. Here are some
general guidelines to follow if loading
cargo or adding accessories to your
scooter:
Loading
The total weight of the operator, passenger, accessories and cargo must
not exceed the maximum load limit of
185 kg (408 lb). When loading within
this weight limit, keep the following in
mind:
1
SAFETY INFORMATION
● Cargo and accessory weight
should be kept as low and close to
the scooter as possible. Make sure
1
to distribute the weight as evenly
as possible on both sides of the
scooter to minimize imbalance or
instability.
● Shifting weights can create a sud-
den imbalance. Make sure that accessories and cargo are securely
attached to the scooter before
riding. Check accessory mounts
and cargo restraints frequently.
● 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.
Accessories
Genuine Yamaha accessories have
been specifically designed for use on
this scooter. Since Yamaha cannot test
all other accessories that may be available, you must personally be responsible for the proper selection, installation
and use of non-Yamaha accessories.
Use extreme caution when selecting
and installing any accessories.
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 performance 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 suspension travel, steering travel or
control operation, or obscure lights
or reflectors.
• Accessories fitted to the handlebar or the front fork area can
create instability due to improper
weight distribution or aerodynamic 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
1-3
also cause instability when
passing or being passed by
large vehicles.
• Certain accessories can displace the operator from his or
her normal riding position. This
improper position limits the freedom of movement of the operator and may limit control ability,
therefore, such accessories are
not recommended.
● Use caution when adding electri-
cal accessories. If electrical accessories 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.
Gasoline and exhaust gas
● GASOLINE IS HIGHLY FLAMMA-
BLE:
• Always turn the engine off when
refueling.
• Take care not to spill any gasoline on the engine or exhaust
system when refueling.
• Never refuel while smoking or in
the vicinity of an open flame.
SAFETY INFORMATION
● Never start the engine or let it run
for any length of time in a closed
area. The exhaust fumes are poisonous and may cause loss of
consciousness and death within a
short time. Always operate your
scooter in an area that has adequate ventilation.
● Always turn the engine off before
leaving the scooter unattended
and remove the key from the main
switch. When parking the scooter,
note the following:
• The engine and exhaust system
may be hot, therefore, park the
scooter in a place where pedestrians or children are not likely to
touch these hot areas.
• Do not park the scooter on a
slope or soft ground, otherwise it
may fall over.
• Do not park the scooter near a
flammable source (e.g., a kerosene heater, or near an open
flame), otherwise it could catch
fire.
● If you should swallow any gaso-
line, inhale a lot of gasoline vapor,
or allow gasoline to get into your
eyes, see your doctor immediately.
If any gasoline spills on your skin
or clothing, immediately wash the
affected area with soap and water
and change your clothes.
1-4
EAU10370
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 completed 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 become extremely slippery when
wet. Slow down and cross them
with caution. Keep the scooter upright, 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.
1
SAFETY INFORMATION
● Always wear a helmet, gloves,
trousers (tapered around the cuff
and ankle so they do not flap), and
1
a bright colored jacket.
● Do not carry too much luggage on
the scooter. An overloaded scooter is unstable.
1-5
Left view
DESCRIPTION
EAU10410
CW50N
1 23
1. Rear brake lever (page 3-6)
2. Speedometer unit (page 3-3)
3. Left handlebar switches (page 3-5)
4. Kickstarter (page 3-8)
5. Air filter element (page 6-8)
6. Final transmission oil filler cap (page 6-7)
7. Final transmission oil drain bolt (page 6-7)
8. Centerstand (page 6-16)
9. Battery/Fuse (page 6-18/6-20)
1 23
2-1
45 6
CW50L
10
789
10.Shock absorber assembly spring preload adjusting ring (CW50L
model only) (page 3-10)
2
DESCRIPTION
Right view
EAU10420
2
1. Grab bar (page 5-2)
2. Oil tank cap (page 3-6)
3. Fuel tank cap (page 3-6)
4. Throttle grip (page 6-9)
5. Right handlebar switch (page 3-5)
6. Front brake lever (page 3-5)
7. Luggage hook (page 3-10)
8. Anti-theft device housing (page 3-9)
9. Securing bracket (page 3-8)
2
9
3 4 5 61
87
2-2
CW50N
4 56
INSTRUMENT AND CONTROL FUNCTIONS
EAU10460
Main switch/steering lock
OPEN
PUSH
ZAUM0253
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.
NOTE:
The headlight, meter lighting and taillight come on automatically when the
engine is started.
OFF “”
EAU10660
All electrical systems are off. The key
can be removed.
EAU10670
CHECK “”
The 2-stroke engine oil level warning
light should come on. (See page 3-2.)
EAU10680
LOCK “”
The steering is locked, and all electrical
systems are off. The key can be removed.
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.
EWA10060
WARNING
Never turn the key to “” or “”
while the vehicle is moving, otherwise the electrical systems will be
switched off, which may result in
loss of control or an accident. Make
sure that the vehicle is stopped before turning the key to “” or “”.
3
3-1
INSTRUMENT AND CONTROL FUNCTIONS
Indicator and warning lights
CW50/CW50L
12
3
ZAUM0554
1. Left turn signal indicator light “”
2. Right turn signal indicator light “”
3. High beam indicator light “”
4. Oil level warning light “”
EAU11001
CW50N
12 34
High beam indicator light “”
This indicator light comes on when the
EAU11080
high beam of the headlight is switched
on.
Oil level warning light “”
EAU11180
This warning light comes on when the
key is in the “” position or when the oil
ZAUM0522
1. Fuel level warning light “”
34
2. High beam indicator light “”
3. Oil level warning light “”
4. Turn signal indicator light “”
EAU11030
Turn signal indicator lights “” and
“” (CW50/CW50L)
The corresponding indicator light flashes when the turn signal switch is
pushed to the left or right.
Turn signal indicator light “”
EAU11020
(CW50N)
This indicator light flashes when the
tu rn signal s witch is pu shed to the left or
level in the 2-stroke engine oil tank is
low during operation. If the warning
light comes on during operation, stop
immediately and fill the oil tank with Yamalube 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 engine oil tank has been refilled.
NOTE:
If the warning light does not come on
when the key is in the “” position or
does not go off after the 2-stroke engine oil tank has been refilled, have a
Yamaha dealer check the electrical circuit.
right.
3-2
INSTRUMENT AND CONTROL FUNCTIONS
ECA10010
CAUTION:
Do not operate the vehicle until you
know that the engine oil level is sufficient.
EAUM1570
Fuel level warning light “”
(CW50N)
ZAUM0524
This warning light comes on and the
last two segments of the fuel meter will
start to flash when the fuel level drops
below approximately 0.6 L (0.17 US
gal) (0.14 Imp.gal). When this occurs,
refuel as soon as possible.
NOTE:
● Do not allow the fuel tank to empty
itself completely.
● 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.
EAU11620
Speedometer unit
(CW50/CW50L)
12
3
ZAUM0555
1. Speedometer
2. Odometer
UK only
12
ZAUM0590
1. Speedometer
2. Odometer
3-3
INSTRUMENT AND CONTROL FUNCTIONS
The speedometer unit is equipped with
a speedometer and an odometer. The
speedometer shows riding speed. The
odometer shows the total distance traveled.
3
EAUM1590
Speedometer unit (CW50N)
12 3
ZAUM0523
1. Speedometer
2. Odometer
3. Fuel meter
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 indicates the amount of fuel in the fuel tank.
(see page 3-2 for an explanation of the
fuel level warning light.)
EAU12110
Fuel gauge (CW50/CW50L)
1
ZAUM0556
1. Fuel gauge
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.
NOTE:
Do not allow the fuel tank to empty itself
completely.
3-4
INSTRUMENT AND CONTROL FUNCTIONS
Handlebar switches
Left
ZAUM0557
1. Horn switch “”
2. Turn signal switch “ / ”
3. Dimmer switch “ / ”
Right
1
ZAUM0473
1. Start switch “”
1
EAU12342
Dimmer switch “ / ”
EAU12400
EAU12900
Front brake lever
Set this switch to “” for the high
beam and to “” for the low beam.
EAU12460
1
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-
3
leased, the switch returns to the center
2
3
lights, push the switch in after it has returned to the center position.
position. To cancel the turn signal
Horn switch “”
EAU12500
Press this switch to sound the horn.
EAUM1130
ZAUM0084
1. Front brake lever
The front brake lever is located on the
right handlebar grip. To apply the front
brake, pull this lever toward the handlebar grip.
Start switch “”
Push this switch while applying the
front or rear brake to crank the engine
with the starter.
ECA10050
CAUTION:
See page 5-1 for starting instructions prior to starting the engine.
3-5
INSTRUMENT AND CONTROL FUNCTIONS
Rear brake lever
1
3
ZAUM0085
1. Rear brake lever
The rear brake lever is located on the
left handlebar grip. To apply the rear
brake, pull this lever toward the handlebar grip.
EAU12950
EAU13200
Fuel and 2-stroke engine oil
tank caps
The fuel tank cap and the 2-stroke engine oil tank cap are located under the
seat. (See page 3-9.)
Fuel tank cap
12
ZAUM0560
1. Fuel tank cap
2. Oil tank cap
To remove the fuel tank cap, turn it
counterclockwise, and then pull it off.
To install the fuel tank cap, turn it clockwise.
To install the 2-stroke engine oil tank
cap, push it into the oil tank opening.
EWA10140
WARNING
Make sure that the fuel and 2-stroke
engine oil tank caps are properly installed before riding the scooter.
2-stroke engine oil tank cap
To remove the 2-stroke engine oil tank
cap, pull it off.
3-6
INSTRUMENT AND CONTROL FUNCTIONS
EAU13210
Fuel
1
2
ZAUM0020
1. Fuel tank filler tube
2. Fuel level
Make sure that there is sufficient fuel in
the tank. Fill the fuel tank to the bottom
of the filler tube as shown.
EWA10880
WARNING
● Do not overfill the fuel tank, oth-
erwise it may overflow when the
fuel warms up and expands.
● Avoid spilling fuel on the hot en-
gine.
ECA10070
CAUTION:
Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted surfaces or plastic parts.
EAU13270
Recommended fuel:
REGULAR 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 0.6 L (0.17 US gal) (0.14
Imp.gal)
Your Yamaha engine has been designed to use regular unleaded gasoline with a research octane number of
91 or higher. If knocking (or pinging) occurs, use a gasoline of a different brand
or premium unleaded fuel. Use of unleaded fuel will extend spark plug life
and reduce maintenance costs.
3-7
EAU13440
Catalytic converter
This vehicle is equipped with a catalytic
converter in the muffler.
EWA10860
WARNING
The exhaust system is hot after operation. Make sure that the exhaust
system has cooled down before doing any maintenance work.
ECA10700
CAUTION:
The following precautions must be
observed to prevent a fire hazard or
other damages.
● Use only unleaded gasoline.
The use of leaded gasoline will
cause unrepairable damage to
the catalytic converter.
● Never park the vehicle near pos-
sible fire hazards such as grass
or other materials that easily
burn.
● Do not allow the engine to idle
too long.
3