PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
6 6. Add coolant or distilled water to
raise the coolant to the specified
level, close the coolant reservoir
cap, and then place the fuel tank in
the original position and install the
bolts.
7. Install the seat.
CAUTION:
ECA10470
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 cool-
ant as soon as possible, other-
wise the engine may not be
sufficiently cooled and the cool-
ing 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 ofthe coolant will be reduced.WARNING
EWA10380
Never attempt to remove the radiatorcap when the engine is hot.NOTE:
The radiator fan is automatically
switched on or off according to the
coolant temperature in the radia-
tor.
If the engine overheats, see page6-37 for further instructions.
EAU33030
Changing the coolant
WARNING
EWA10380
Never attempt to remove the radiatorcap when the engine is hot.
The coolant must be changed at the in-
tervals specified in the periodic mainte-
nance and lubrication chart. Have a
Yamaha dealer change the coolant.
1. Coolant reservoir capCoolant reservoir capacity (up to the
maximum level mark):
0.27 L (0.29 US qt) (0.24 Imp.qt)
U5VXE2E0.book Page 11 Wednesday, July 7, 2004 11:32 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
6
WARNING
EWA12471
Be sure to place the hoses in theiroriginal position as shown.
9. Install the panels.
10. Install the seat.
EAU34300
Adjusting the engine idling
speed The engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
The engine should be warm before
making this adjustment.NOTE:
The engine is warm when it quickly re-sponds to the throttle.
Check the engine idling speed and, if
necessary, adjust it to specification by
turning the idle adjusting screw. To in-
crease the engine idling speed, turn the
screw in direction (a). To decrease the
engine idling speed, turn the screw in
direction (b).
NOTE:
If the specified idling speed cannot be
obtained as described above, have aYamaha dealer make the adjustment.
1. Fuel hose
2. Fuel tank hose
1. Original position (white marks)
1. Idle adjusting screw
Engine idling speed:
1250–1350 r/min
U5VXE2E0.book Page 13 Wednesday, July 7, 2004 11:32 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-14
6
EAU21380
Adjusting the throttle cable
free play The throttle cable free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, have a Yamaha dealer adjust it.
EAU21400
Adjusting the valve clearance The valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
EAU21771
Tires To maximize the performance, durabil-
ity, and safe operation of your motor-
cycle, 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.
WARNING
EWA10500
The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).
The tire air pressure must be ad-
justed in accordance with the
riding speed and with the total
weight of rider, passenger, car-
go, and accessories approvedfor this model.
1. Throttle cable free playU5VXE2E0.book Page 14 Wednesday, July 7, 2004 11:32 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-22
6
EAU23021
Lubricating the drive chain The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.CAUTION:
ECA10581
The drive chain must be lubricated
after washing the motorcycle andriding in the rain.
1. Clean the drive chain with kero-
sene and a small soft brush.CAUTION:
ECA11120
To prevent damaging the O-rings, do
not clean the drive chain with steam
cleaners, high-pressure washers orinappropriate solvents.
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive
chain with a special O-ring chain
lubricant.
CAUTION:
ECA11110
Do not use engine oil or any other lu-
bricants for the drive chain, as they
may contain substances that coulddamage the O-rings.
EAU23100
Checking and lubricating the
cables The operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubricat-
ed if necessary. If a cable is damaged
or does not move smoothly, have a
Yamaha dealer check or replace it.
WARNING
EWA10720
Damage to the outer sheath may in-
terfere with proper cable operation
and will cause the inner cable to
rust. Replace a damaged cable as
soon as possible to prevent unsafeconditions.Recommended lubricant:
Engine oil
U5VXE2E0.book Page 22 Wednesday, July 7, 2004 11:32 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-26
6
EAU23280
Checking the steering Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground.
WARNING
EWA10750
Securely support the vehicle so thatthere is no danger of it falling over.
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
EAU23290
Checking the wheel bearings The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer check
the wheel bearings.
U5VXE2E0.book Page 26 Wednesday, July 7, 2004 11:32 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-37
6
EAU25911
Troubleshooting charts Starting problems or poor engine performance
WARNING
EWA10840
Keep away open flames and do not smoke while checking or working on the fuel system.
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 plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs.
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.
DryWet
Open the throttle halfway and operate
the electric starter.
U5VXE2E0.book Page 37 Wednesday, July 7, 2004 11:32 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-38
6Engine overheating
WARNING
EWA10400
Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hissingsound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
NOTE:If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolantas soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See NOTE.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
U5VXE2E0.book Page 38 Wednesday, July 7, 2004 11:32 AM
INDEXAAir filter element, replacing ................... 6-12
Anti-theft alarm (optional)........................ 3-8
Auxiliary light bulb, replacing ................ 6-32BBattery................................................... 6-27
Brake and clutch levers,
checking and lubricating ..................... 6-24
Brake and shift pedals,
checking and lubricating ..................... 6-23
Brake fluid, changing ............................ 6-20
Brake fluid level, checking .................... 6-19
Brake lever ............................................ 3-10
Brake pedal ........................................... 3-11CCables, checking and lubricating .......... 6-22
Care ........................................................ 7-1
Catalytic converter ................................ 3-13
Centerstand and sidestand,
checking and lubricating ..................... 6-24
Clutch lever ........................................... 3-10
Clutch lever free play, adjusting ............ 6-17
Coolant.................................................. 6-10DDimmer switch ........................................ 3-9
Drive chain, lubricating.......................... 6-22
Drive chain slack ................................... 6-20EEngine break-in ....................................... 5-3
Engine idling speed............................... 6-13
Engine oil and oil filter cartridge .............. 6-7
Engine stop switch .................................. 3-9
Engine trouble warning light.................... 3-4
FFront and rear brake pads, checking .... 6-18
Front fork, checking .............................. 6-25
Fuel....................................................... 3-12
Fuel consumption, tips for reducing........ 5-3
Fuel tank breather hose........................ 3-13
Fuel tank cap ........................................ 3-11
Fuses, replacing ................................... 6-28HHandlebar switches ................................ 3-8
Hazard switch ......................................... 3-9
Headlight bulb, replacing ...................... 6-29
High beam indicator light ........................ 3-4
Horn switch ............................................. 3-9IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-16
Immobilizer system ................................. 3-1
Immobilizer system indicator light........... 3-4
Indicator and warning lights .................... 3-3KKey identification number ....................... 9-1LLCD tachometer ..................................... 3-5
License plate light bulb, replacing ........ 6-31MMain switch/steering lock........................ 3-2
Model label ............................................. 9-2
Multi-function display .............................. 3-5NNeutral indicator light .............................. 3-3OOil level warning light.............................. 3-4
PPanels, removing and installing .............. 6-5
Parking .................................................... 5-4
Part locations .......................................... 2-1
Pass switch ............................................. 3-9
Periodic maintenance and lubrication
chart ...................................................... 6-2
Pre-operation check list........................... 4-2RRear brake light switch, adjusting ......... 6-18SSafety information ................................... 1-1
Seat ....................................................... 3-13
Shifting .................................................... 5-2
Shift pedal ............................................. 3-10
Shock absorber assembly, adjusting .... 3-15
Sidestand .............................................. 3-16
Spark plugs, checking ............................. 6-6
Specifications .......................................... 8-1
Starting the engine .................................. 5-1
Start switch.............................................. 3-9
Steering, checking................................. 6-26
Storage.................................................... 7-3
Storage compartment............................ 3-14
Swingarm pivots, lubricating ................. 6-25TTail/brake light bulb, replacing .............. 6-30
Throttle cable free play, adjusting ......... 6-14
Throttle grip and cable,
checking and lubricating ..................... 6-23
Tires ...................................................... 6-14
Tool kit..................................................... 6-1
Troubleshooting .................................... 6-36
Troubleshooting charts.......................... 6-37
U5VXE2E0.book Page 1 Wednesday, July 7, 2004 11:32 AM