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
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
EAU32220
Left view
CS50/CS50M
DESCRIPTION
2-1
2
1. Storage compartment (page 3-11)
2. Shock absorber assembly
3. Final transmission oil filler cap (page 6-7)
4. Adjusting nut (page 6-13)5. Final transmission oil drain bolt (page 6-7)
6. Kickstarter (page 3-10)
7. Air filter element (page 6-9)
8. Front brake pads (page 6-14)
5RW-F8199-E4.QXD 19/11/07 08:01 Página 12
EAU32220
CS50Z
DESCRIPTION
2-2
2
1. Storage compartment (page 3-11)
2. Shock absorber assembly
3. Final transmission oil filler cap (page 6-7)
4. Adjusting nut (page 6-13)
5. Final transmission oil drain bolt (page 6-7)6. Kickstarter (page 3-10)
7. Air filter element (page 6-9)
8. Coolant level window (page 6-8)
9. Front brake pads (page 6-14)
5RW-F8199-E4.QXD 19/11/07 08:01 Página 13
EAU32240
Controls and instruments
CS50/CS50M/CS50Z
DESCRIPTION
2-5
21
234
5678
1. Rear brake lever (page 3-7)
2. Left handlebar switches (page 3-6)
3. Speedometer (page 3-3)
4. Multi-function display (page 3-4)
5. Main switch/steering lock (page 3-1)
6. Right handlebar switch (page 3-6)7. Throttle grip (page 6-10)
8. Front brake lever (page 3-6)
5RW-F8199-E4.QXD 19/11/07 08:01 Página 16
EAU12347
Handlebar switches
1. Dimmer switch “j/k”
2. Turn signal switch “c/d”
3. Horn switch “a”
1. Start “g”
EAU12400
Dimmer switch “j/k”
Set this switch to “j” for the high
beam and to “k” for the low beam.
EAU12460
Turn signal switch “c/d”
To signal a right-hand turn, push this
switch to “d”. To signal a left-hand
turn, push this switch to “c”. 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.
EAU12500
Horn switch “a”
Press this switch to sound the horn.
EAUM1131
Start switch “g”
Push this switch while applying the
front or rear brake to crank the engine
with the starter.
ECA10050
CAUTION:
See page 5-1 for starting instruc-
tions prior to starting the engine.
EAU12900
Front brake lever
1. Front brake lever
The front brake lever is located on the
right handlebar grip. To apply the
front brake, pull this lever toward the
handlebar grip.
1
Right
1
2
3 Left
INSTRUMENT AND CONTROL FUNCTIONS
3-6
3
5RW-F8199-E4.QXD 19/11/07 08:01 Página 22
EAU12950
Rear brake lever
1. Rear brake lever
The rear brake lever is located on the
left handlebar grip. To apply the rear
brake, pull this lever toward the hand-
lebar grip.
EAU13201
Fuel and 2-stroke engine oil
tank caps
1. Oil tank cap
2. Fuel tank cap
The fuel tank cap and the 2-stroke
engine oil tank cap are located under
the seat. (See page 3-10.)
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.
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
s s
WARNING
Make sure that the fuel and 2-stro-
ke engine oil tank caps are properly
installed before riding the scooter.
INSTRUMENT AND CONTROL FUNCTIONS
3-7
3
5RW-F8199-E4.QXD 19/11/07 08:01 Página 23
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