Page 1
OWNER’S MANUAL
CS50Z
CS50
5RW-F8199-E2
Page 2
Page 3
INTRODUCTION
EAU10110
Welcome to the Yamaha world CS50Z/CS50, manufacture of high of motorcycling!
As the owner of the CS50Z/CS50, 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 CS50Z/CS50. 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!
Page 4
IMPORTANT MANUAL INFORMATION
Particularly important information is distinguished in this manual by the following notations:
EAU34110
t
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS
INVOLVED!
ss
WARNING Failure to follow WARNING instructions could result in severe injury or death to the
scooter operator, a bystander, or a person inspecting or repairing the scooter.
CAUTION A CAUTION indicates special precautions that must be taken to avoid damage to
the scooter.
NOTE: A NOTE provides key information to make procedures easier or clearer.
NOTE:
● This manual should be considered a permanent part of this scooter and should remain with it even if the scooter is
subsequently 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.
EWA12410
ss
WARNING
PLEASE READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE OPERATING THIS SCOOTER.
Page 5
IMPORTANT MANUAL INFORMATION
EAUS1171
CS50Z/CS50
OWNER’S MANUAL
©2005 by YAMAHA MOTOR SPAIN S.A.
1st edition, January 2005
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
YAMAHA MOTOR SPAIN S.A.
is expressly prohibited.
Printed in Spain.
Page 6
Page 7
TABLE OF CONTENTS
SAFETY INFORMATION.....................1-1
DESCRIPTION.....................................2-1
Left view ...........................................2-1
Right view .........................................2-2
Controls and instruments .................2-3
INSTRUMENT AND CONTROL
FUNCTIONS ........................................3-1
Main switch/steering lock.................3-1
Indicator lights ..................................3-1
Speedometer unit .............................3-2
Fuel gauge ........................................3-3
Clock.................................................3-3
Handlebar switches ..........................3-3
Front brake lever...............................3-4
Rear brake lever................................3-4
Fuel and 2 stroke engine oil
tank caps.......................................3-4
2-Stroke engine oil ...........................3-5
Kickstarter.........................................3-6
Seat...................................................3-6
Storage compartment.......................3-6
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 ........................................5-1
Acceleration and deceleration..........5-2
Braking..............................................5-2
Engine break-in.................................5-2
Parking..............................................5-2
PERIODIC MAINTENANCE AND
MINOR REPAIRS ................................6-1
Periodic maintenance and
lubrication chart ............................6-2
Checking the spark plug ..................6-5
Final transmission oil ........................6-6
Coolant (only for liquid-cooled
models)..........................................6-6
To check the coolant level ................6-7
Cleaning the air filter element...........6-8
Adjusting the carburetor...................6-9
Adjusting the throttle cable
free play.........................................6-9
Tires ..................................................6-9
Adjusting the front brake lever
free play.......................................6-11
Adjusting the rear brake lever
free play.......................................6-11
Cheking the front brake pads
and rear brake shoes ..................6-12
Checking the front brake fluid
level .............................................6-13
Changing the brake fluid ................6-13
Checking and lubricating the
cables ..........................................6-13
Checking and lubricating the
throttle grip and cable.................6-14
Adjusting the autolube pump .........6-14
Lubricating the front and rear
brake levers .................................6-14
Checking and lubricating the
centerstand .................................6-14
Checking the front fork...................6-15
Checking the steering.....................6-15
Checking the wheel bearings .........6-15
Replacing the headlight bulb or
a front turn signal light bulb ........6-16
Replacing a turn signal light bulb
or the tail/brake light bulb ...........6-16
Replacing the license plate light
bulb .............................................6-17
Battery ............................................6-17
Replacing the fuse..........................6-18
Troubleshooting ..............................6-19
Troubleshooting chart .....................6-20
SCOOTER CARE AND STORAGE .....7-1
Care ..................................................7-1
Storage compartment.......................7-3
SPECIFICATIONS ...............................8-1
CONSUMER INFORMATION .............9-1
Page 8
t
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
MANUAL.
● 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.
EAUT1010
Safe riding
● Always make pre-operation
checks. Careful checks may help
prevent an accident.
● This scooter is designed to carry
the operator and passenger.
NOTE:
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
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 approaching and passing through
intersections, since intersections are the most likely places
for scooter accidents to occur.
1-1
• Ride where other motorists can
see you. Avoid riding in another motorist’s blind spot.
● Many accidents involve inexpe-
rienced 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 cau-
sed by error of the scooter operator. A typical error made by the
operator is veering wide on a turn
due to EXCESSIVE SPEED or
under cornering (insufficient lean
angle for the speed).
• Always obey the speed limit
Page 9
SAFETY INFORMATION
t
and never travel faster than
warranted 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 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 hel-
met.
● 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
CS50Z 158kg (348,39lb), CS50 161kg
(355lb). When loading within this
weight limit, keep the following in
mind:
1
Page 10
t
SAFETY INFORMATION
● Cargo and accessory weight
should be kept as low and close
1
to the scooter as possible. Make
sure 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 “Loading” 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 scoo-
1-3
ter may become unstable in
cross winds. These accessories may 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.
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SAFETY INFORMATION
t
• Never refuel while smoking or
in the vicinity of an open flame.
● 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 gasoli-
ne, 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.
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
corner 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
1-4
EAU10360
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 lining could get wet
when you wash the scooter. After
washing the scooter, check the
brakes before riding.
● 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
scooter is unstable. Use a strong
cord to secure any luggage to the
carriers. A loose load will affect
the stability of the scooter and
could divert your attention from
the road.
1
Page 12
DESCRIPTION
Left view
EAU10410
2
1. Headlight (page 6-16)
2. Front blinker (page 6-16)
3. Seat (page 3-6)
4. Handle
3
4
1
5
2
6
7
5. Left rear blinker (page 6-16)
6. kickstarter (page 3-6)
7. Air filter (page 6-8)
8. Center stand (page 6-14)
2-1
8
Page 13
Right view
11
10
DESCRIPTION
EAU10420
12 13 14
2
16
15
9. Wheel (Front) (page 6-15)
10. Right rear blinker (page 6-16)
11. Tail light (page 6-16)
12. Fuel tank (page 3-4)
9
13. Storage compartment (page 3-6)
14. Battery (page 6-17)
15. Wheel (Rear) (page 6-15)
16. Coolant reservoir (page 6-7)
2-2
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DESCRIPTION
k
b
a
j
d
z
c
40
50
30
10
20
60
70
80
0
y
Controls and instruments
2
17
18
28
24
EAU10430
21
22
25
20
231920
26
17. Rear brake lever (page 6-11)
18. Left handlebar switch (page 3-3)
19. Speedometer (page 3-2)
20. Turn signal indicator light (page 3-1)
21. High beam light (page 3-1)
22. Oil level warning light (page 3-1)
23. Coolant temperature warning light (page 3-1)
24. "TRIP" button (page 3-2)
29
31 30 27
25. Fuel gauge (page 3-3)
26. Front brake lever (page 3-4 )
27. Right handlebar switch (page 3-3)
28. Turn signal switch (page 3-3)
29. Horn switch (page 3-3)
30. Main switch (page 3-1)
31. Coolant level gauge window (page 6-7)
2-3
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j
d
z
c
40
50
30
10
20
60
70
80
0
y
00000.0
23:08
TOTAL
Ex
F
INSTRUMENT AND CONTROL FUNCTIONS
EAU10460
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.
EAU10630
ON
*
The 2-stroke engine oil level warning
light should come on. (See page 3-1.)
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 “OFF”
position, and then turn it to
“LOCK” while still pushing it.
3. Remove the key.
To unlock the steering
Push the key in, and then turn it to
“OFF” while still pushing it.
EAU10670
EAU10680
EWA10060
ss
WARNING
Never turn the key to “OFF” or
“LOCK” 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 “OFF” or “LOCK”.
EAU10980
Indicator lights
1
4
1
3
All electrical systems are supplied
with power, and the engine can be
started. The key cannot be removed.
EAU10660
OFF
All electrical systems are off. The key
can be removed.
3-1
1. Turn signal indicator lights “b”
2. High beam indicator light “j”
3. Oil level warning light “z”
4. Coolant temperature warning light “y”
2
3
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j
d
z
c
40
50
30
10
20
60
70
80
0
y
00000.0
23:08
TOTAL
Ex
F
INSTRUMENT AND CONTROL FUNCTIONS
Turn signal indicator lights “c” and
“d”
The corresponding indicator light flashes when the turn signal switch is
pushed to the left or right.
High beam indicator light “j”
3
This indicator light comes on when
the high beam of the headlight is switched on.
2-stroke engine oil level warning
light “z”
This warning light comes on when the
2-stroke engine oil level is low.
The electrical circuit of the warning
light can be checked according to the
following procedure.
1. Turn the key to “ON”.
2. Shift the transmission into the
neutral position.
3. If the warning light does not
come on, have a Yamaha dealer
check the electrical circuit.
EAU11030
EAU11080
EAU11130
ECA11570
CAUTION
Do not operate the motorcycle until
you know that the 2-stroke engine
oil level is sufficient.
NOTE:
Even if the 2-stroke engine oil level is
sufficient, the warning light may flicker when riding on a slope or during
sudden acceleration or deceleration,
but this is not a malfunction.
EAU11430
Coolant temperature warning light
“y”
This warning light comes on when the
engine overheats. When this occurs,
stop the engine immediately and
allow the engine to cool.
ECA10020
CAUTION
Do not operate the engine if it is
overheated.
3-2
EAUM1090
Speedometer unit
1
5
1. Speedometer unit
2. Fuel gauge
3. Clock
4. Odometer (TOTAL/TRIP)
5. “TRIP” button
The speedometer unit is equipped
with a speedometer, an odometer and
a tripmeter. The speedometer shows
riding speed. The odometer shows
the total distance traveled. The tripmeter shows the distance traveled
since it was last set to zero.
Pushing the reset button switches the
display between the odometer mode
“TOTAL” and the tripmeter mode
“TRIP”. To reset the tripmeter, enter
the “TRIP” mode, and then hold down
4
3
2
Page 17
k
b
a
INSTRUMENT AND CONTROL FUNCTIONS
the reset button for at least two
second.
The tripmeter can be used together
with the fuel gauge to estimate the
distance that can be traveled with a
full tank of fuel. This information will
enable you to plan future fuel stops.
EAU12140
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”, refuel as soon as possible.
NOTE:
Do not allow the fuel tank to empty
itself completely.
EAUS1010
Clock
To set the clock
1. Turn the key to “f”.
2. Set the odometer/tripmeter display to “TOTAL” by pushing the
“SET” button.
3. Push the “SET” button for at least
two seconds.
4. When the hours digits start flashing, push the “SET” button to
set the hours.
5. Push the “SET” button for at least
two seconds and the minutes
digits will start flashing.
6. Push the “SET” button to set the
minutes.
7. Push the “SET” button for at least
two seconds to start the clock
and return to the odometer/tripmeter mode.
NOTE:
The clock is displayed only when the
key is in the “f” position.
EAU12343
Handlebar switches
1 3
3
2
1. Horn switch
2. Turn signal switch
3. Dimmer swith
EAU12400
Dimmer switch “j/k”
Set this switch to “j” for the high
beam and to “k” for the low beam.
EAU12440
Turn signal switch “TURN”
To signal a right-hand turn, push this
switch to the right. To signal a lefthand turn, push this switch to the left.
When released, the switch returns to
the center position. To cancel the turn
signal lights, push the switch in after it
has returned to the center position.
3-3
Page 18
j
k
INSTRUMENT AND CONTROL FUNCTIONS
Horn switch “a”
Press this switch to sound the horn.
Start switch “START”
3
1
1. Start switch
Push this switch while applying the
front or rear brake to crank the engine
with the starter.
CAUTION
See page 5-1 for starting instructions prior to starting the engine.
EAU12500
EAU12700
ECA10050
EAU12900
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.
EAU12950
Rear brake lever
3-4
The rear brake lever is located on the
left handlebar grip. To apply the rear
brake, pull this lever toward the handlebar grip.
EAU13200
Fuel and 2-stroke engine oil
tank caps
2
1
1. Fuel tank cap
2. Engine oil tank cap
The fuel tank cap and the 2-stroke
engine oil tank cap are located under
the seat. (See page 3-6.)
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
clockwise.
Page 19
INSTRUMENT AND CONTROL FUNCTIONS
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.
EWA10140
ss
WARNING
Make sure that the fuel and 2-stroke engine oil tank caps are properly
installed before riding the scooter.
EAU13220
Fuel
1. Refill pipe
2. Fuel level
EWA10880
ss
WARNING
● Do not overfill the fuel tank,
otherwise it may overflow
when the fuel warms up and
expands.
● Avoid spilling fuel on the hot
engine.
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:
5,5L (1,21 US gal) (4,8Imp.gal)
Fuel reserve amount:
1,9L(0,42US gal) (1,67Imp.gal)
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.
EAU13460
2-stroke engine oil
Make sure that there is sufficient oil in
the 2-stroke engine oil tank. Add the
recommended 2-stroke engine oil if
necessary.
NOTE:
Make sure that the 2-stroke engine oil
tank cap is properly installed.
Recommended oil:
Yamalube 2 or equivalent 2-stroke
engine oil (JASO grade “FC”, or
ISO grades “EG-C” or “EG-D”)
Oil quantity:
1,4L (0,31 US qt)(1,23 Imp.qt)
3
Make sure that there is sufficient fuel
in the tank. When refueling, be sure to
insert the pump nozzle into the fuel
tank filler hole and to fill the tank to
the bottom of the filler tube as shown.
Your Yamaha engine has been designed to use regular unleaded gasoline
with a research octane number of 91
or higher. If knocking (or pinging)
3-5
Page 20
INSTRUMENT AND CONTROL FUNCTIONS
Kickstarter
3
1. 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.
Seat
EAUS1050
1
EAU13931
To open the seat
1. Place the scooter on the centerstand.
2. Insert the key into the main
switch, and then turn it counterclockwise.
NOTE:
Do not push inward when turning the
key.
3. Fold the seat up.
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
unattended.
NOTE:
Make sure that the seat is properly
secured before riding.
EAU14440
Storage compartment
1
1. Storage compartment
EAU14510
Storage compartment
There is a storage compartment
under the seat. (See page 3-6.)
ss
WARNING
● Do not exceed the load limit of
3,5 kg (7,4 lb) for the storage
compartment.
● Do not exceed the maximum
load of 158kg (348,4lb) CS50Z
or 161kg (355lb) CS50 for the
vehicle.
EWA10960
3-6
Page 21
INSTRUMENT AND CONTROL FUNCTIONS
ECA10080
CAUTION
Keep the following points in mind
when using the storage compartment.
● Since the storage compart-
ment accumulates heat when
exposed to the sun, do not store anything susceptible to heat
inside it.
● To avoid humidity from sprea-
ding through the storage compartment, wrap wet articles in
a plastic bag before storing
them in the compartment.
● Since the storage compart-
ment may get wet while the
scooter is being washed, wrap
any articles stored in the compartment in a plastic bag.
● Do not keep anything valuable
or breakable in the storage
compartment.
To store a helmet in the storage compartment, place the helmet upsidedown with the front facing forward.
NOTE:
● Some helmets cannot be stored
in the storage compartment
because of their size or shape.
● Do not leave your scooter unat-
tended with the seat open.
3
3-7
Page 22
PRE-OPERATION CHECKS
EAU15591
The condition of a vehicle is the
owner’s responsibility. Vital components can start to deteriorate quickly
and unexpectedly, even if the vehicle
remains unused (for example, as a
result of exposure to the elements).
Any damage, fluid leakage or loss of
tire air pressure could have serious
consequences. Therefore, it is very
important, in addition to a thorough
4
visual inspection, to check the following points before each ride.
NOTE:
Pre-operation checks should be
made each time the vehicle is used.
Such an inspection can be accomplished in a very short time; and the
added safety it assures is more than
worth the time involved.
EWA11150
ss
WARNING
If any item in the Pre-operation
check list is not working properly,
have it inspected and repaired
before operating the vehicle.
4-1
Page 23
PRE-OPERATION CHECKS
Pre-operation check list
ITEM CHECKS PAGE
Fuel • Refuel if necessary. 3-3, 3-4
2-stroke engine oil • If necessary, add recommended oil to specified level. 3-4, 3-5
Transmission oil
Front brake • Replace if necessary. 6-11, 6-12, 6-13, 3-4
Rear brake
Throttle grip
Wheels and tires
Brake levers
Centerstand
• Check fuel level in fuel tank.
• Check fuel line for leakage.
• Check oil level in oil tank.
• Check vehicle for oil leakage.
• Check oil level in transmission case.
• If necessary, add recommended oil to specified level.
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary.
• Make sure that operation is smooth.
• Check cable free play.
• If necessary, have Yamaha dealer adjust cable free play and lubricate cable
and grip housing.
• Check for damage.
• Check tire condition and tread depth.
• Check air pressure.
• Correct if necessary.
• Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary.
• Make sure that operation is smooth.
• Lubricate pivot if necessary.
6-6
3-4, 6-11, 6-12
6-9, 6-14
6-9, 6-15
3-4, 6-11, 6-14
6-14
EAU15603
4
4-2
Page 24
PRE-OPERATION CHECKS
ITEM CHECKS PAGE
Chassis fasteners
Instruments, lights, • Check operation.
signals and switches • Correct if necessary.
Coolant • If necessary, add recommended coolant to specified level. 6-6, 6-7
4
• Make sure that all nuts, bolts and screws are properly tightened.
• Tighten if necessary.
• Check coolant level in reservoir.
• Check cooling system for leakage.
—
—
4-3
Page 25
OPERATION AND IMPORTANT RIDING POINTS
EAU15980
EWA10870
ss
WARNING
● Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer
regarding any control or function that you do not thoroughly
understand.
● Never start the engine or ope-
rate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of consciousness and death within a
short time. Always make sure
that there is adequate ventilation.
● For safety, always start the
engine with the centerstand
down.
EAU16560
Starting a cold engine
ECA10250
CAUTION
See page 5-2 for engine break-in
instructions prior to operating the
vehicle for the first time.
1. Turn the key to “*”, and when the
oil level warning light comes on,
turn it to “ON”.
ECA10240
CAUTION
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.
NOTE:
If the engine fails to start by pushing
the start switch, release the switch,
wait a few seconds, and then try
again. Each starting attempt should
be as short as possible to preserve
the battery. Do not crank the engine
more than 5 seconds on any one
5-1
attempt. If the engine does not start
with the starter motor, try using the
kickstarter.
ECA11040
CAUTION
For maximum engine life, never
accelerate hard when the engine is
cold!
EAU16760
Starting off
NOTE:
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
adjust the rear view mirrors.
3. Switch the turn signal 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 signal off.
5
Page 26
OPERATION AND IMPORTANT RIDING POINTS
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 throttle grip in direction (b).
Braking
1. Close the throttle completely.
2. Apply both front and rear brakes
5
simultaneously while gradually
increasing the pressure.
ss
WARNING
● 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 construction sites, and manhole
covers become extremely slippery when wet. Therefore, slow
down when approaching such
areas and cross them with caution.
EAU16780
EAU16791
EWA10300
● Keep in mind that braking on a
wet road is much more difficult.
● Ride slowly down a hill, as bra-
king downhill can be very difficult.
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 following 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-throttle operation or any condition
that might result in engine overheating must be avoided.
EAUT1110
0~150 km (0~90 mi)
Avoid operation above 1/3 throttle.
Stop the engine and let it cool for 5 to
10 minutes after every hour of operation. 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.
ECAT1010
CAUTION
After 1000 km (600 mi) of operation,
be sure to replace the final gear oil.
1000 km (600 mi) and beyond
Avoid prolonged full throttle operation. Vary speeds occasionally.
ECA10270
CAUTION
If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle.
EAU17200
Parking
When parking, stop the engine, and
then remove the key from the main
switch.
5-2
Page 27
EWA10310
ss
WARNING
● Since the engine and exhaust
system can become very hot,
park in a place where pedestrians or children are not likely
to touch them.
● Do not park on a slope or on
soft ground, otherwise the
vehicle may overturn.
OPERATION AND IMPORTANT RIDING POINTS
5
5-3
Page 28
PERIODIC MAINTENANCE AND MINOR REPAIR
Safety is an obligation of the owner.
Periodic inspection, adjustment and
lubrication will keep your vehicle in
the safest and most efficient condition possible. The most important
points of inspection, adjustment, and
lubrication are explained on the following pages.
The intervals given in the periodic
maintenance and lubrication chart
should be simply considered as a
general guide under normal riding
conditions. However, DEPENDING
ON THE WEATHER, TERRAIN, GEO-
6
GRAPHICAL LOCATION, AND INDIVIDUAL USE, THE MAINTENANCE
INTERVALS MAY NEED TO BE
SHORTENED.
ss
WARNING
If you are not familiar with maintenance work, have a Yamaha dealer
do it for you.
ss
WARNING
This scooter is designed for use on
paved roads only. If this scooter is
operated in abnormally dusty,
EAU17280
EWA10320
EWA10330
muddy or wet conditions, the air filter element should be cleaned or
replaced more frequently, otherwise rapid engine wear may result.
Consult a Yamaha dealer for proper
maintenance intervals.
6-1
Page 29
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU17710
Periodic maintenance and lubrication chart
NOTE:
● The annual checks must be performed every year, except if a kilometer-based maintenance is performed
instead.
● From 30000 km, repeat the maintenance intervals starting from 6000 km.
● Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and
technical skills.
ODOMETER READING (x 1000 Km) ANNUAL
NO ITEM CHEK OR MAINTENANCE JOB 1 6 12 18 24
1*Fuel line • Check fuel and vacuum hoses for cracks or damage. √√√√ √
2
Spark plug
3 Air filter element
4*Front brake
5*Rear brake
6*Brake hose
7*Wheels • Check runout and for damage. √√√√
8*Tires
• Check condition.
• Clean and regap.
• Replace. √√
• Clean. √√
• Replace. √√
• Check operation, fluid level and vehicle for fluid leakage. √√ √ √√ √
• Replace brake pads. Whenever worn to the limit
• Check operation and adjust brake lever free play. √√ √ √√ √
• Replace brake shoes. Whenever worn to the limit
• Check for cracks or damage. √√√√ √
• Replace. Every 4 years
• Check tread depth and for damage.
• Replace if necessary.
• Check air pressure.
• Correct if necessary.
6-2
√√
√√√√ √
CHECK
6
Page 30
PERIODIC MAINTENANCE AND MINOR REPAIR
ODOMETER READING (x 1000 Km) ANNUAL
NO ITEM CHEK OR MAINTENANCE JOB 1 6 12 18 24 CHECK
9*Wheel bearings • Check bearing for looseness or damage. √√√√
10 * Steering bearings
11 * Chassis fasteners
12 Centerstand
13 * Front fork • Check operation and for oil leakage. √√√√
Shock absorber
14 *
assembly
15 * Carburetor • Adjust engine idling speed. √√ √ √√ √
6
16 * Autolube pump
17 * Cooling system
Final transmission
18
oil
19 * V-belt • Replace. Every 12000 km
Front and rear brake
20 *
switches
Moving parts and
21
cables
Lights, signals • Check operation.
22 *
and switches • Adjust headlight beam. √√ √ √√ √
• Check bearing play and steering for roughness. √√ √ √√
• Lubricate with lithium-soap-based grease. Every 24000 km
• Make sure that all nuts, bolts and screws are
properly tightened.
• Check operation.
• Lubricate.
• Check operation and shock absorber for oil leakage. √√√√
• Check operation.
• Bleed if necessary.
• Check coolant level and vehicle for coolant leakage. √√√√ √
• Change. Every 3 years
• Check vehicle for oil leakage. √√ √
• Change. √√√
• Check operation. √√ √ √√ √
• Lubricate. √√√√ √
√√√√ √
√√√√ √
√√√√
6-3
Page 31
PERIODIC MAINTENANCE AND MINOR REPAIR
NOTE:
● 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 replace the internal components of the brake master cylinder and caliper, and change the brake fluid.
• Replace the brake hoses every four years and if cracked or damaged.
EAU18660
6
6-4
Page 32
PERIODIC MAINTENANCE AND MINOR REPAIR
Checking the spark plug
The spark plug is an important engine
component, which is easy to check.
Since heat and deposits will cause
any spark plug to slowly erode, the
spark plug should be removed and
checked in accordance with the
periodic maintenance and lubrication
chart. In addition, the condition of the
spark plug can reveal the condition of
the engine.
To remove the spark plug
1. Remove the spark plug cap.
2. Remove the spark plug as
6
shown, with the spark plug
wrench included in the owner’s
tool kit.
To check the spark plug
1. Check that the porcelain insulator around the center electrode of
the spark plug is a medium-tolight tan (the ideal color when the
vehicle is ridden normally).
NOTE:
If the spark plug shows a distinctly
different color, the engine could be
defective. Do not attempt to diagnose
EAU19602
such problems yourself. Instead, have
a Yamaha dealer check the vehicle.
2. Check the spark plug for electrode erosion and excessive carbon
or other deposits, and replace it if
necessary.
Specified spark plug:
BR8HS/NGK
To install the spark plug
1. Distance between electrodes
1. Measure the spark plug gap with
a wire thickness gauge and, if
necessary, adjust the gap to specification.
Spark plug gap:
0,6 ~ 0,7 mm (0,24 ~ 0,27in)
2. Clean the surface of the spark
plug gasket and its mating surface, and then wipe off any grime
from the spark plug threads.
3. Install the spark plug with the
spark plug wrench, and then
tighten it to the specified torque.
Tightening torque:
Spark plug:
20 Nm (2,0 m•kgf, 14,6 ft•lbf)
NOTE:
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 specified torque as soon
as possible.
4. Install the spark plug cap.
6-5
Page 33
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU20060
Final transmission oil
1
1. Oil filler bolt
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 transmission oil must be changed as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
1. Start the engine, warm it up by
riding the scooter for several
minutes, and then stop the engine.
1. Drain plug
2. Place the scooter on the centerstand.
3. Place an oil pan under the final
transmission case to collect the
used oil.
4. Remove the oil filler cap and
drain bolt to drain the oil from the
final transmission case.
5. Install the final transmission oil
drain bolt, and then tighten it to
the specified torque.
Tightening torque:
Final transmission oil drain bolt:
18 Nm (1,8 m•kgf, 13,2 ft•lbf)
6. Add the specified amount of the
recommended final transmission
oil, and then install and tighten
the oil filler cap.
Recommended final transmission
oil:
SAE30 motor oil.
1
Oil quantity:
0,11 L (0,0003 Imp.qt)
ss
WARNING
● Make sure that no foreign
material enters the final transmission case.
● Make sure that no oil gets on
the tire or wheel.
7. Check the final transmission case
for oil leakage. If oil is leaking,
check for the cause.
Coolant (only for liquidcooled models)
The coolant level should be checked
before each ride. In addition, the coolant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EWA11310
6
EAUS1200
6-6
Page 34
j
d
z
c
40
50
30
10
20
60
70
80
0
PERIODIC MAINTENANCE AND MINOR REPAIR
To check the coolant level
1. Place the vehicle on a level surface and hold it in an upright position.
NOTE:
● The coolant level must be chec-
ked on a cold engine since the
level varies with engine temperature.
● Make sure that the vehicle is
positioned straight up when
checking the coolant level. A
slight tilt to the side can result in
6
a false reading.
a
k
b
y
1
EAUS1080
NOTE:
The coolant should be between the
minimum and maximum level marks.
1
1. Coolant reservoir
3. If the coolant is at or below the
minimum level mark, remove the
front cowling by removing the
screws.
4. Open the reservoir cap, and then
add coolant to the maximum
level mark.
Coolant reservoir capacity:
0,380 L (0,00103 Imp.qt)
ECA10470
CAUTION
● If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.
● If water has been used instead
of coolant, replace it with coolant as soon as possible, otherwise the engine may not be
sufficiently cooled and the cooling system will not be protected against frost and corrosion.
● If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible, otherwise the effectiveness of the coolant will be
reduced.
5. Close the reservoir cap, and then
install the front cowling by installing the screws.
1. Coolant level gauge window
2. Check the coolant level through
the check window.
6-7
Page 35
PERIODIC MAINTENANCE AND MINOR REPAIR
EAUS1090
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
frequently if you are riding in unusually wet or dusty areas.
2
1
3
1. Lid from the air filter box
2. Screw
3. Screw
1. Remove the screw clamp and the
screws that fasten the air filter
case to the crankcase.
2
1
1. Lid from the air filter box
2. Screws (x 3)
2. Remove the air filter case cover
by removing the screws.
3. Pull the air filter element out.
4. Clean the air filter element with
solvent, and then squeeze the
remaining solvent out.
1
1. The air filter
EWA10430
ss
WARNING
Use only a dedicated parts cleaning solvent. To avoid the risk of
fire or explosion, do not use gasoline or solvents with a low flash
point.
ECA10510
CAUTION
To avoid damaging the foam material, handle it gently and carefully,
and do not twist or wring it.
5. Apply oil of the recommended
type to the entire surface of the
sponge material, and then squeeze the excess oil out.
NOTE:
The air filter element should be wet
but not dripping.
Recommended oil:
Engine oil
6. Insert the element into the air filter case.
6
6-8
Page 36
PERIODIC MAINTENANCE AND MINOR REPAIR
CAUTION
● Make sure that the air filter ele-
ment is properly seated in the
air filter case.
● The engine should never be
operated without the air filter
element installed, otherwise
the piston(s) and/or cylinder(s)
may become excessively worn.
6
7. Install the air filter case cover by
installing the screws.
8. Install the screw clamp and the
screws that fasten the air filter
case to the crankcase.
ECA10480
EAU21300
Adjusting the carburetor
The carburetor is an important part of
the engine and requires very sophisticated adjustment. Therefore, all carburetor adjustments should be left to
a Yamaha dealer, who has the necessary professional knowledge and
experience.
EAU21370
Adjusting the throttle cable
free play
The throttle cable free play should
measure 2 ~ 5 mm (0,8 ~ 0,20 in) at
the throttle grip. Periodically check
the throttle cable free play and, if
necessary, adjust it as follows.
NOTE:
The engine idling speed must be
correctly adjusted before checking
and adjusting the throttle cable free
play.
6-9
b
a
21
1. Locknut
2. Adjuster
3. Free play
1. Loosen the locknut.
2. To increase the throttle cable free
play, turn the adjusting nut in
direction (a). To decrease the
throttle cable free play, turn the
adjusting nut in direction (b).
3. Tighten the locknut.
EAU33600
Tires
To maximize the performance, durability, and safe operation of your vehicle, note the following points regarding the specified tires.
Tire air pressure
The tire air pressure should be checked and, if necessary, adjusted before each ride.
Page 37
PERIODIC MAINTENANCE AND MINOR REPAIR
EWA10500
ss
WARNING
● 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
adjusted in accordance with
the riding speed and with the
total weight of rider, passenger,
cargo, and accessories approved for this model.
Tire air pressure (measured on cold
tires):
0~90 kg (0~198 lb):
Front:
175 kPa (24,90lb) (1,75 kgf/cm
Rear:
200 kPa (28,44lb) (2,0 kgf/cm
90~190 kg (198~419 lb) to maximum load:
Front:
175 kPa (24,90lb) (1,75 kgf/cm
Rear:
225 kPa (32lb) (2,25 kgf/cm
Maximum load*:
158,3 kg (348,4lb) CS50Z
161kg (255lb) CS50
* Total weight of rider, passenger,
cargo and accessories
2
ss
WARNING
Because loading has an enormous
impact on the handling, braking,
performance and safety characteristics of your vehicle, you should
keep the following precautions in
mind.
● NEVER OVERLOAD THE VEHI-
CLE! Operation of an overloaded motorcycle may result in
tire damage, loss of control, or
severe injury. Make sure that
the total weight of rider, passenger, cargo, and accessories
does not exceed the specified
maximum load for the vehicle.
2
)
2
)
● Do not carry along loosely pac-
ked items, which can shift
during a ride.
● Securely pack the heaviest
items close to the center of the
2
)
vehicle and distribute the
weight evenly on both sides.
)
● Adjust the tire air pressure with
regard to the load.
● Check the tire condition and air
pressure before each ride.
6-10
EWA11200
1. Depth
2. Side face
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 replace the tire immediately.
Minimum tire tread depth (front
and rear):
1.6 mm (0.06 in)
6
Page 38
j
k
PERIODIC MAINTENANCE AND MINOR REPAIR
NOTE:
The tire tread depth limits may differ
from country to country. Always
comply with the local regulations.
Tire information
This model is equipped with tubeless
tires.
Front tire:
Size:
110/70-12
Rear tire:
6
Size:
120/70-12 (Spain)
130/70-12
ss
WARNING
● Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the
vehicle with excessively worn
tires decreases riding stability
and can lead to loss of control.
● The replacement of all wheel
and brake related parts, inclu-
EWA10470
ding the tires, should be left to
a Yamaha dealer, who has the
necessary professional knowledge and experience.
EAU22100
Adjusting the brake lever
free play
a
a. Free play
The brake lever free play should measure 2 ~ 5 mm (0,08 ~ 0,20 in) as
shown. Periodically check the brake
lever free play and, if necessary, have
a Yamaha dealer adjust it.
ss
WARNING
An incorrect brake lever free play
indicates a hazardous condition in
the brake system. Do not operate
6-11
EWA10640
the motorcycle until the brake system has been checked or repaired
by a Yamaha dealer.
EAU22170
Adjusting the rear brake
lever free play
a
a. Free play
The brake lever free play should measure 5 ~ 10 mm (0,2 ~ 0,4 in) as
shown. Periodically check the brake
lever free play and, if necessary,
adjust it as follows.
Page 39
PERIODIC MAINTENANCE AND MINOR REPAIR
1. Adjuster
2. To decrease free play
3. To increase free play
To increase the brake lever free play,
turn the adjusting nut at the brake
shoe plate in direction (2). To decrease the brake lever free play, turn the
adjusting nut in direction (3).
ss
WARNING
EWA10650
If proper adjustment cannot be
obtained 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
maintenance and lubrication chart.
EAU22430
Front brake pads
1. Wear indicator
2. Front brake disc
(a). Wearing limit: 0,8 mm.
Each front brake pad is provided with
wear indicator grooves, which allow
you to check the brake pad wear without having to disassemble the brake.
To check the brake pad wear, check
the wear indicator grooves. If a brake
6-12
pad has worn to the point that the
wear indicator grooves have almost
disappeared, have a Yamaha dealer
replace the brake pads as a set.
EAU22540
Rear brake shoes
6
1. Wear indicator
2. Limit of wear
The rear brake is provided with a wear
indicator, which allows you to check
the brake shoe wear without having to
disassemble 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.
Page 40
PERIODIC MAINTENANCE AND MINOR REPAIR
Checking the front brake
fluid level
1. Minimum level
6
Insufficient brake fluid may allow air
to enter the brake system, possibly
causing it to become ineffective.
Before riding, check that the brake
fluid is above the minimum level mark
and replenish if necessary. A low brake fluid level may indicate worn brake
pads and/or brake system leakage. If
the brake fluid level is low, be sure to
check the brake pads for wear and
the brake system for leakage.
MIN
EAU32343
1
Observe these precautions:
● When checking the fluid level,
make sure that the top of the
master cylinder is level by turning
the handlebars.
● Use only the recommended qua-
lity brake fluid, otherwise the rubber seals may deteriorate, causing leakage and poor braking
performance.
Recommended brake fluid:
DOT 4
● Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performance.
● Be careful that water does not
enter the master cylinder when
refilling. Water will significantly
lower the boiling point of the fluid
and may result in vapor lock.
● Brake fluid may deteriorate pain-
ted surfaces or plastic parts.
Always clean up spilled fluid
immediately.
● As the brake pads wear, it is nor-
mal for the brake fluid level to
gradually go down. However, if
the brake fluid level goes down
suddenly, have a Yamaha dealer
check the cause.
EAU22720
Changing the brake fluid
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the NOTE after the periodic maintenance and lubrication chart. In addition, have the oil seals of the brake
master cylinder and caliper as well as
the brake hose replaced at the intervals listed below or whenever they are
damaged or leaking.
● Oil seals: Replace every two
years.
● Brake hose: Replace every four
years.
EAU23100
Checking and lubricating the
cables
The operation of all control cables
and the condition of the cables
should be checked before each ride,
6-13
Page 41
PERIODIC MAINTENANCE AND MINOR REPAIR
and the cables and cable ends should
be lubricated if necessary. If a cable is
damaged or does not move smoothly,
have a Yamaha dealer check or replace it.
Recommended lubricant:
Engine oil
EWA10720
ss
WARNING
Damage to the outer sheath may
interfere with proper cable operation and will cause the inner cable
to rust. Replace a damaged cable
as soon as possible to prevent
unsafe conditions.
EAU23110
Checking and lubricating the
throttle grip and cable
The operation of the throttle grip
should be checked before each ride.
In addition, the cable should be lubricated or replaced at the intervals specified in the periodic maintenance
chart.
EAU23120
Adjusting the Autolube pump
The Autolube pump is a vital and sophisticated component of the engine,
which must be adjusted by a Yamaha
dealer at the intervals specified in the
periodic maintenance and lubrication
chart.
EAU23170
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 maintenance and lubrication
chart.
Recommended lubricant:
Lithium-soap-based grease (allpurpose grease)
EAU23190
Checking and lubricating the
centerstand
The operation of the centerstand
should be checked before each ride,
and the pivots and metal-to-metal
contact surfaces should be lubricated
if necessary.
ss
WARNING
If the centerstand does not move
up and down smoothly, have a
Yamaha dealer check or repair it.
Recommended lubricant:
Lithium-soap-based grease (allpurpose grease)
EWA11300
6
6-14
Page 42
PERIODIC MAINTENANCE AND MINOR REPAIR
Checking the front fork
The condition and operation of the
front fork must be checked as follows
at the intervals specified in the periodic maintenance and lubrication chart.
To check the condition
ss
WARNING
Securely support the motorcycle so
that there is no danger of it falling
over.
6
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation
1. Place the motorcycle on a level
surface and hold it in an upright
position.
EAU23271
EWA10750
2. While applying the front brake,
push down hard on the handlebars several times to check if the
front fork compresses and
rebounds smoothly.
ECA10590
CAUTION
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or
repair it.
EAU23280
Checking the steering
Worn or loose steering bearings may
cause danger. Therefore, the operation of the steering must be checked
as follows at the intervals specified in
the periodic maintenance and lubrication chart.
6-15
1. Place a stand under the engine to
raise the front wheel off the
ground.
ss
WARNING
EWA10750
Securely support the motorcycle so
that there is no danger of it falling
over.
2. Hold the lower ends of the front
fork legs and try to move them
forward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
EAU23290
Checking the wheel bearings
The front and rear wheel bearings
must be checked at the intervals specified in the periodic maintenance and
lubrication 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.
Page 43
B
Y
G
PERIODIC MAINTENANCE AND MINOR REPAIR
EAUS1110
Replacing the headlight bulb
or a front turn signal light
bulb
1
1. Headlight bulb
If a bulb burns out, replace it as
follows.
CAUTION
It is advisable to have a Yamaha
dealer perform this job.
Headlight bulb
1. Remove the front panel by removing the screws.
ECA10670
EWA10790
ss
WARNING
Headlight bulbs get very hot. Therefore, keep flammable products
away from a lit headlight bulb, and
do not touch the bulb until it has
cooled down.
2. Remove the defective bulb from
the socket.
3. Insert a new bulb into the socket.
4. Install the panel by installing the
screws.
5. Have a Yamaha dealer adjust the
headlight beam if necessary.
1
Front turn signal light bulb
1. Remove the front panel by removing the screws.
2. Remove the defective bulb from
the socket.
3. Insert a new bulb into the socket.
4. Install the panel by installing the
screws.
EAU24281
Replacing a turn signal light
bulb or the tail/brake light
bulb
1
6
1. Tail light bulb
1. Remove the lens by removing the
screws.
2. Remove the defective bulb by
pushing it in and turning it counterclockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clockwise until it stops.
6-16
Page 44
PERIODIC MAINTENANCE AND MINOR REPAIR
1
1. Rear turn signal light bulb
4. Install the lens by installing the
screws.
CAUTION
6
Do not overtighten the screws,
otherwise the lens may break.
ECA10680
EAU24310
Replacing the license plate
light bulb
1
1. License plate light
1. Remove the license plate light
unit by removing the screws.
2. Remove the socket (together
with the bulb) by pulling it out.
3. Remove the defective bulb by
pulling it out.
4. Insert a new bulb into the socket.
5. Install the socket (together with
the bulb) by pushing it in.
6. Install the license plate light unit
by installing the screws.
6-17
EAU23370
Battery
This model is equipped with a sealedtype (MF) battery, which does not
require any maintenance. There is no
need to check the electrolyte or to
add distilled water.
CAUTION
Never attempt to remove the battery cell seals, as this would permanently damage the battery.
ss
WARNING
● Electrolyte is poisonous and
dangerous since it contains
sulfuric acid, which causes
severe burns. Avoid any contact with skin, eyes or clothing
and always shield your eyes
ECA10620
EWA10760
Page 45
PERIODIC MAINTENANCE AND MINOR REPAIR
when working near batteries.
In case of contact, administer
the following FIRST AID.
• EXTERNAL: Flush with plenty
of water.
• INTERNAL: Drink large quantities of water or milk and
immediately call a physician.
• EYES: Flush with water for 15
minutes and seek prompt
medical attention.
● Batteries produce explosive
hydrogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and provide sufficient ventilation when
charging it in an enclosed space.
● KEEP THIS AND ALL BATTE-
RIES OUT OF THE REACH OF
CHILDREN.
To charge the battery
Have a Yamaha dealer charge the
battery as soon as possible if it seems
to have discharged. Keep in mind that
the battery tends to discharge more
quickly if the vehicle is equipped with
optional electrical accessories.
To store the battery
1. If the vehicle will not be used for
more than one month, remove
the battery, fully charge it, and
then place it in a cool, dry place.
2. If the battery will be stored for
more than two months, check it
at least once a month and fully
charge it if necessary.
3. Fully charge the battery before
installation.
4. After installation, make sure that
the battery leads are properly
connected to the battery terminals.
ECA10630
CAUTION
● Always keep the battery char-
ged. Storing a discharged battery can cause permanent battery damage.
6-18
● To charge a sealed-type (MF)
battery, a special (constantvoltage) battery charger is
required. Using a conventional
battery charger will damage
the battery. If you do not have
access to a sealed-type (MF)
battery charger, have a Yamaha
dealer charge your battery.
EAUS1180
Replacing the fuse
6
1
1. Fuse
The fuse holder is located beside the
battery case.
If the fuse is blown, replace it as
follows.
1. Turn the key to "OFF" and turn off
all electrical circuits.
Page 46
PERIODIC MAINTENANCE AND MINOR REPAIR
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.
Specified fuse:
7,5 A x 1
CAUTION
Do not use a fuse of a higher amperage rating than recommended to
avoid causing extensive damage to
the electrical system and possibly a
fire.
3. Turn the key to "ON" and turn on
6
the electrical circuits to check if
the devices operate.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
ECA10640
EAU25860
Troubleshooting
Although Yamaha scooters receive a
thorough inspection before shipment
from the factory, trouble may occur
during 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
yourself. However, should your scooter require any repair, take it to a
Yamaha dealer, whose skilled technicians have the necessary tools, experience, and know-how to service the
scooter properly.
Use only genuine Yamaha replacement parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
6-19
Page 47
PERIODIC MAINTENANCE AND MINOR REPAIR
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
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.
Operate the electric starter.
4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.
Check the battery lead connections,
and charge the battery if necessary.
Dry
Wet
Open the throttle halfway and operate
the electric starter.
Troubleshooting chart
ss
WARNING
Keep away open flames and do not smoke while checking or working on the fuel system.
EAU25901
EWA10840
6-20
6
Page 48
SCOOTER CARE AND STORAGE
Care
While the open design of a scooter
reveals the attractiveness of the technology, 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. Frequent 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
7
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 installed.
3. Remove extremely stubborn dirt,
like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such pro-
EAU26090
ducts onto seals, gaskets and
wheel axles. Always rinse the dirt
and degreaser off with water.
Cleaning
ECA10780
CAUTION
● Avoid using strong acidic whe-
el cleaners, especially on spoked wheels. If such products
are used on hard-to-remove
dirt, do not leave the cleaner on
the affected area any longer
than instructed. Also, thoroughly rinse the area off with
water, immediately dry it, and
then apply a corrosion protection spray.
● Improper cleaning can damage
windshields, cowlings, panels
and other plastic parts. Use
only a soft, clean cloth or sponge with mild detergent and
water to clean plastic.
● 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
7-1
thinner, fuel (gasoline), rust
removers or inhibitors, brake
fluid, antifreeze or electrolyte.
● Do not use high-pressure was-
hers or steam-jet cleaners since they cause water seepage
and deterioration in the following areas: seals (of wheel and
swingarm 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 compounds for plastic may leave
scratches on the windshield.
Test the product on a small hidden 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.
Page 49
SCOOTER CARE AND STORAGE
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
corrosive in combination with water,
carry out the following steps after
each ride in the rain, near the sea or
on salt-sprayed roads.
NOTE:
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
engine has cooled down.
ECA10790
CAUTION
Do not use warm water since it
increases the corrosive action of
the salt.
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 stainlesssteel parts, including the exhaust
system. (Even the thermally induced discoloring of stainless-steel
exhaust systems can be removed
through polishing.)
3. To prevent corrosion, it is recommended to apply a corrosion protection spray on all metal, including chrome- and nickel-plated,
surfaces.
4. Use spray oil as a universal cleaner 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
before storing or covering it.
ss
WARNING
● Make sure that there is no oil or
EWA10940
wax on the brakes or tires. If
necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or
acetone, and wash the tires
with warm water and a mild
detergent.
● Before operating the scooter
test its braking performance
and cornering behavior.
ECA10800
CAUTION
● Apply spray oil and wax spa-
ringly 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.
7
7-2
Page 50
SCOOTER CARE AND STORAGE
NOTE:
Consult a Yamaha dealer for advice
on what products to use.
Storage
Short-term
Always store your scooter in a cool,
dry place and, if necessary, protect it
against dust with a porous cover.
CAUTION
● 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.
7
● To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong chemicals are stored.
Long-term
Before storing your scooter for several months:
1. Follow all the instructions in the
“Care” section of this chapter.
2. Drain the carburetor float cham-
EAU26300
ECA10820
ber 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
protect 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 sparking
during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder wall with oil.)
e. Remove the spark plug cap from
the spark plug, and then install
the spark plug and the spark plug
cap.
EWA10950
ss
WARNING
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over.
5. Lubricate all control cables and
the pivoting points of all levers
and pedals as well as of the
sidestand/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. Alternatively, 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 excessively cold or warm place [less than 0 °C (30 °F) or more
than 30 °C (90 °F)]. For more
7-3
Page 51
information on storing the battery, see page 6-17.
NOTE:
Make any necessary repairs before
storing the scooter.
SCOOTER CARE AND STORAGE
7
7-4
Page 52
SPECIFICATIONS
Dimensions
Weight
Engine
8
Overall length
1740 mm
Overall width
675 mm
Overall height
1065 mm
Seat height
770 mm
Wheelbase
1210 mm
Ground clearance
132 mm
With oil and fuel
CS50 80.5 kg
CS50Z 83.7 kg
Engine type
CS50 Air cooled 2-stroke
CS50Z Liquid cooled 2-stroke
Cylinder arrangement
Forward-inclined single cylinder
Displacement
49.2 cm3
Bore x stroke
40.0 x 39.2 mm
Compression ratio
CS50 10.20 :1
CS50Z 11.40 :1
Starting system
Electric starter and kickstarter
Lubrication system
Separate lubrication (Yamaha autolube)
Type
YAMALUBE 2-cycle oil or 2-stroke engine
oil
Engine oil quantity
Quantity
1.4 L
Transmission oil
Type
YAMALUBE 4 (10W30) or SAE10W30
type SE motor oil
Oil change quantity
0.10 L
Air filter element
Wet element
Fuel
Recommended fuel
Regular unleaded gasoline
Fuel tank capacity
5.5 L
Carburetor
Manufacturer
CS50 DELLORTO GURTNER
CS50Z DELLORTO
Type x quantity
CS50 PHVA 12 ZS/1 PY 12/1
CS50Z PHVA 12 ZS/1
Spark plug(s)
Manufacturer/model
NGK/BR8HS
Spark plug gap
0.6-0.7 mm
Clutch type
Dry, centrifugal automatic
8-1
Transmission
Primary reduction system
Helical gear
Primary reduction ratio
52/13 (4.000)
Secondary reduction system
Spur gear
Secondary reduction ratio
CS50 42/13 (3.230)
CS50Z 43 x 13 (3.310)
Transmission type
Single speed automatic
Operation
Centrifugal automatic type
Chassis
Caster angle
25.00 degree
Trail
80.0 mm
Front tire
Size
110/70-12 47L
Rear tire
Size
120/70-12 51L 130/70-12 56L
Maximum load
CS50 161 kg
CS50Z 158 kg
Tire air pressure (measured on cold
tires)
Front
175 kPa
Rear
200 kPa
Page 53
SPECIFICATIONS
Front wheel
Rim size
MT 2.75X12
Rear wheel
Rim size
MT 3.00X12
Front brake
Type
Single disc brake
Operation
Right hand operation
Recommended 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
Rear suspension
Type
Unit swing
Spring/shock absorber type
Coil spring/oil damper
Wheel travel
60.0 mm
Electrical system
Ignition system
CDI
Charging system
Flywheel magneto
Battery
Model
GT4L-BS
Voltage, capacity
12 V, 4.0 Ah
Bulb voltage, wattage x quantity
Headlight
12 V, 35 W/35.0 W x 1
Tail/brake light
12 V, 21.0 W/5.0 W x 1
Front turn signal light
12 V, 16.0 W x 2
Rear turn signal light
12 V, 10.0 W x 2
Meter lighting
12 V, 1.2 W x 2
Oil level warning light
LED
Fuel level warning light
NONE
Fuses
Main fuse
7.5 A
Engine idle speed
1800-2200 r/min
Brake pad lining thickness-inner
4.0 mm
Limit
0.8 mm
Brake pad lining thickness-outer
4.0 mm
8-2
Limit
0.8 mm
Front brake lever free play
2.0-5.0 mm
Rear brake lever free play
10.0-20.0 mm
8
Page 54
CONSUMER INFORMATION
Identification numbers
Record the key identification number,
vehicle identification number 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.
KEY IDENTIFICATION NUMBER:
VEHICLE IDENTIFICATION NUMBER:
MODEL LABEL INFORMATION:
9
EAU26351
EAU26381
Key identification number
The key identification number is
stamped into the key tag.Record this
number in the space provided and
use it for reference when ordering a
new key.
EAU26410
Vehicle identification number
1
1. Vehicle identification number
The vehicle identification number is
stamped into the frame.
NOTE:
The vehicle identification number is
used to identify your motorcycle and
may be used to register your
motorcycle with the licensing authority in your area.
EAU26540
Model label
1
1. Model label
The model label is affixed to the frame
under the seat. (See page 3-6.)
Record the information on this label in
the space provided. This information
will be needed when ordering spare
parts from a Yamaha dealer.
9-1
Page 55
INDEX
2
2-Stroke engine oil.....................................1-1
A
Acceleration and deceleration ...................2-1
Adjusting the autolube pump ....................2-1
Adjusting the carburetor ............................2-2
Adjusting the front brake lever free play....2-3
Adjusting the rear brake lever free play.....3-1
Adjusting the throttle cable free play.........3-1
B
Battery........................................................3-1
Braking.......................................................3-2
C
Care............................................................3-3
Changing the brake fluid............................3-3
Checking and lubricating the cables .........3-3
Checking and lubricating the centerstand.3-4
Checking and lubricating the throttle
grip and cable..........................................3-4
Checking the front brake fluid level...........3-4
Checking the front fork ..............................3-5
Checking the spark plug............................3-6
Checking the steering................................3-6
Checking the wheel bearings ....................3-6
Cheking the front brake pads and
rear brake shoes......................................4-1
Cleaning the air filter element ....................4-2
Clock ..........................................................5-1
Controls and instruments ..........................5-1
Coolant (only for liquid-cooled models) ...5-2
E
Engine break-in..........................................5-2
F
Final transmission oil .................................5-2
Front brake lever........................................6-1
Fuel and 2 stroke engine oil tank caps......6-2
Fuel gauge .................................................6-5
H
Handlebar switches ...................................6-6
I
Indicator lights ...........................................6-6
K
Kickstarter..................................................6-8
L
Left view.....................................................6-9
Lubricating the front and rear brake
levers .......................................................6-9
M
Main switch/steering lock ..........................6-9
P
Parking .....................................................6-11
Periodic maintenance and lubrication
chart.......................................................6-12
Pre-operation check list...........................6-13
R
Rear brake lever.......................................6-14
Replacing a turn signal light bulb or
the tail/brake light bulb..........................6-14
Replacing the fuse ...................................6-14
Replacing the headlight bulb or a
front turn signal light bulb .....................6-14
Replacing the license plate light bulb......6-15
Right view ................................................6-15
S
Seat..........................................................6-16
Speedometer unit ....................................6-17
Starting a cold engine..............................6-18
Starting off ...............................................6-19
Storage compartment..............................6-20
Storage compartment................................7-1
T
Tires ...........................................................7-1
To check the coolant level .........................7-3
Troubleshooting .........................................8-1
Troubleshooting chart ................................9-1
Page 56
YAMAHA MOTOR ESPAÑA, S.A.
PRINTED IN SPAIN
2005.1-Bengar Gràfiques, S.L.
(E)
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