SAFETY INFORMATION.....................1-1
Further safe-riding points .................1-4
DESCRIPTION.....................................2-1
Left view ...........................................2-1
Right view .........................................2-3
Controls and instruments .................2-5
INSTRUMENT AND CONTROL
FUNCTIONS........................................3-1
Main switch/steering lock .................3-1
Indicator and warning lights .............3-2
Speedometer ....................................3-3
Multi-function display .......................3-4
Handlebar switches ..........................3-6
Front brake lever...............................3-6
Rear brake lever................................3-7
Fuel and 2-stroke engine oil tank
caps ...............................................3-7
Fuel ...................................................3-8
Catalytic converter............................3-8
2-stroke engine oil ............................3-9
2-stroke engine oil tank ....................3-9
Kickstarter.......................................3-10
Seat.................................................3-10
Storage compartment.....................3-11
Luggage hook .................................3-12
PRE-OPERATION CHECKS...............4-1
Pre-operation check list....................4-2OPERATION 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 panel .........................6-5
Checking the spark plug ..................6-6
Final transmission oil ........................6-7
Coolant (only for liquid-cooled
models) ..........................................6-8
Air filter element ................................6-9
Adjusting the carburetor .................6-10
Adjusting the throttle cable
free play .......................................6-10
Tires ................................................6-11
Cast wheels ....................................6-12
Checking the front brake lever
free play .......................................6-13
Adjusting the rear brake lever
free play .......................................6-13Checking the front brake pads
and rear brake shoes ..................6-14
Checking the brake fluid level ........6-15
Changing the brake fluid ................6-16
Checking and lubricating the
throttle grip and cable .................6-16
Lubricating the front and rear
brake levers .................................6-16
Checking and lubricanting the
centerstand .................................6-17
Checking the front fork ...................6-17
Checking the steering.....................6-18
Checking the wheel bearings .........6-19
Battery ............................................6-19
Replacing the fuse ..........................6-20
Replacing the headlight bulb
or a front turn signal light
bulb .............................................6-21
Replacing the tail/brake light
bulb or a rear turn signal light
bulb .............................................6-22
Replacing an auxiliary light
bulb .............................................6-23
Troubleshooting ..............................6-24
Troubleshooting charts ...................6-25
SCOOTER CARE AND STORAGE.....7-1
Matte color caution...........................7-1
Care ..................................................7-1
Storage .............................................7-3
TABLE OF CONTENTS
5RW-F8199-E4.QXD 19/11/07 08:01 Página 5
When loading within this weight limit,
keep the following in mind:
●Cargo and accessory weight
should be kept as low and close
to the scooter as possible. Make
sure to distribute the weight as
evenly as possible on both sides
of the scooter to minimize imba-
lance or instability.
●Shifting weights can create a
sudden imbalance. Make sure
that accessories and cargo are
securely attached to the scooter
before riding. Check accessory
mounts and cargo restraints fre-
quently.
●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 onthis scooter. Since Yamaha cannot
test all other accessories that may be
available, you must personally be res-
ponsible for the proper selection, ins-
tallation 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 “Loa-
ding” when mounting accessories.
●Never install accessories or carry
cargo that would impair the per-
formance of your scooter. Care-
fully inspect the accessory befo-
re using it to make sure that it
does not in any way reduce
ground clearance or cornering
clearance, limit suspension tra-
vel, steering travel or control ope-
ration, or obscure lights or reflec-
tors.
• Accessories fitted to the hand-
lebar or the front fork area can
create instability due to impro-
per 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 aerodyna-
mic effects. Wind may attempt
to lift the scooter, or the scoo-
ter may become unstable in
cross winds. These accesso-
ries may also cause instability
when passing or being passed
by large vehicles.
• Certain accessories can dis-
place the operator from his or
her normal riding position. This
improper position limits the fre-
edom of movement of the ope-
rator and may limit control abi-
lity, therefore, such
accessories are not recom-
mended.
●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.
Maximum load:
CS50 169 kg (373 lb)
CS50M 169 kg (373 lb)
CS50Z 166 kg (366 lb)
1
tSAFETY INFORMATION
1-3
5RW-F8199-E4.QXD 19/11/07 08:01 Página 9
Gasoline and exhaust gas
●GASOLINE IS HIGHLY FLAMMA-
BLE:
• Always turn the engine off
when refueling.
• Take care not to spill any gaso-
line on the engine or exhaust
system when refueling.
• 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 poi-
sonous and may cause loss of
consciousness and death within
a short time. Always operate your
scooter in an area that has ade-
quate 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 sys-
tem 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 kero-
sene 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 immedia-
tely. If any gasoline spills on your
skin or clothing, immediately
wash the affected area with soap
and water and change your clot-
hes.
EAU10371
Further safe-riding points
●Be sure to signal clearly when
making turns.
●Braking can be extremely difficult
on a wet road. Avoid hard bra-
king, 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 cons-
truction sites, and manhole
covers become extremely slip-
pery 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
tSAFETY INFORMATION
1-4
5RW-F8199-E4.QXD 19/11/07 08:01 Página 10
EAU11003
Indicator and warning lights
For CS50/CS50M
1. Left turn signal indicator light “c”
2. Oil level warning light “z”
3. High beam indicator light “j”
4. Right turn signal indicator light “d”
For CS50Z
1. Left turn signal indicator light “c”
2. Coolant temperature warning light “y”
3. Oil level warning light “z”
4. High beam indicator light “j”
5. Right turn signal indicator light “d”
EAU11030
Turn signal indicator lights “c” and
“d”
The corresponding indicator light flas-
hes when the turn signal switch is
pushed to the left or right.
EAU11080
High beam indicator light “j”
This indicator light comes on when
the high beam of the headlight is swit-
ched on.
EAU11180
Oil level warning light “z”
This warning light comes on when the
key is in the “h” position or when the
oil 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 refi-
lled.
NOTE:
If the warning light does not come on
when the key is in the “h” position or
does not go off after the 2-stroke
engine oil tank has been refilled, have
a Yamaha dealer check the electrical
circuit.
ECA10010
CAUTION:
Do not operate the vehicle until you
know that the engine oil level is suf-
ficient.
km/h
01020304050607080
1
2345
km/h
01020304050607080
1
234
INSTRUMENT AND CONTROL FUNCTIONS
3-2
3
5RW-F8199-E4.QXD 19/11/07 08:01 Página 18
PRE-OPERATION CHECKS
4-2
4
EAU15605
Pre-operation check list
ITEM CHECKS PAGE
• Check fuel level in fuel tank.
Fuel• Refuel if necessary.3-8
• Check fuel line for leakage.
• Check oil level in oil tank.
2-stroke engine oil• If necessary, add recommended oil to specified level. 3-9
• Check vehicle for oil leakage.
Final transmission oil• Check vehicle for oil leakage. 6-7
• Check coolant level in reservoir.
Coolant (for CS50Z)• If necessary, add recommended coolant to specified level. 6-8
• Check cooling system for leakage.
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
Front brake• Replace if necessary. 6-13, 6-14, 6-15
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Check operation.
Rear brake• Lubricate cable if necessary.
6-13, 6-14
• Check lever free play.
• Adjust if necessary.
• Make sure that operation is smooth.
Throttle grip• Check cable free play.
6-10, 6-16
• If necessary, have Yamaha dealer adjust cable free play and lubricate
cable and grip housing.
• Check for damage.
Wheels and tires• Check tire condition and tread depth.
6-11, 6-12
• Check air pressure.
• Correct if necessary.
Brake levers• Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary.6-16
5RW-F8199-E4.QXD 19/11/07 08:01 Página 30
EAU15980
EWA10870
s s
WARNING
●Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer
regarding any control or func-
tion 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 cons-
ciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.
●For safety, always start the
engine with the centerstand
down.
EAU16561
Starting a cold engineECA10250
CAUTION:
See page 5-4 for engine break-in
instructions prior to operating the
vehicle for the first time.
1. Turn the key to “h”, and when
the oil level warning light comes
on, turn it to “f”.
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 pus-hing the start switch or by pus-
hing 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
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!
ZAUM0367
m
OPERATION AND IMPORTANT RIDING POINTS
5-1
5
5RW-F8199-E4.QXD 19/11/07 08:01 Página 32
EAU16761
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 centers-
tand.
1. Grab bar
2. Rear brake lever
2. Sit astride the seat, and then
adjust the rear view mirrors.
3. Switch the turn signals on.4. Check for oncoming traffic, and
then slowly turn the throttle grip
(on the right) in order to take off.
5. Switch the turn signals off.
EAU16780
Acceleration and
deceleration
The speed can be adjusted by ope-
ning and closing the throttle. To incre-
ase the speed, turn the throttle grip in
direction (a). To reduce the speed,
turn the throttle grip in direction (b).
(b)
(a)
ZAUM0199
OPERATION AND IMPORTANT RIDING POINTS
5-2
5
5RW-F8199-E4.QXD 19/11/07 08:01 Página 33
PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
6
ODOMETER READING
ANNUAL
NO. ITEM CHECK OR MAINTENANCE JOB
1000 km 6000 km 12000 km 18000 km 24000 kmCHECK
(600 mi) (3500 mi) (7000 mi) (10500 mi) (14000 mi)
• Check tread depth and for damage.
8*Tires• Replace if necessary.
√√√√ √
• Check air pressure.
• Correct if necessary.
9*Wheel bearings• Check bearing for looseness or damage.√√√√
10 *Steering bearings• Check bearing play and steering for roughness.√√√√√• Lubricate with lithium-soap-based grease. Every 24000 km (14000 mi)
11 *Chassis fasteners• Make sure that all nuts, bolts and screws are
properly tightened.√√√√ √
12Front brake lever
• Lubricate with silicone grease.√√√√ √
pivot shaft
13Rear brake lever
• Lubricate with lithium-soap-based grease.√√√√ √
pivot shaft
14Centerstand• Check operation.
• Lubricate.√√√√ √
15 *Front fork• Check operation and for oil leakage.√√√√
16 *Shock absorber
• Check operation and shock absorber for oil leakage.√√√√
assembly
17 *Carburetor• Adjust engine idling speed.√√√√√ √
18 *Autolube pump• Check operation.
• Bleed if necessary.√√√√
19Transmission oil• Check oil level.√√√√√ √• Change.√√
20 *Cooling system• Check coolant level and vehicle for coolant leakage.√√√√ √
• Change. Every 3 years
5RW-F8199-E4.QXD 19/11/07 08:01 Página 38