6-37
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
EAU02990
Troubleshooting chartsStarting problems or poor engine performance
EW000125
wKeep 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.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.DryWet
The engine does not start.
Check the battery.Open the throttle halfway and operate
the electric starter.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
5GJ-9-EV 5/26/01 11:04 AM Page 78
6-38
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9 Engine overheating
EW000070
w8Do 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.
8After 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
hissing sound has stopped, press down on the cap while turning it counterclockwise, and then remove the
cap.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.
NOTE:
If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended
coolant as soon as possible.
5GJ-9-EV 5/26/01 11:04 AM Page 79
INDEX
F
Front and rear brake levers ...................6-25
Front and rear brake pads, checking.....6-26
Front fork, checking ...............................6-30
Fuel .........................................................3-9
Fuel consumption, tips for reducing ........5-3
Fuel gauge ..............................................3-4
Fuel tank cap ...........................................3-8
Fuses, replacing ....................................6-34
H
Handlebar switches .................................3-6
Pass switch ...........................................3-6
Dimmer switch ......................................3-6
Turn signal switch .................................3-6
Horn switch ...........................................3-6
Engine stop switch ................................3-7
Start switch ...........................................3-7
Headlight bulb, replacing .......................6-35
Helmet holder ........................................3-11
I
Identification numbers .............................9-1
Ignition circuit cut-off system .................3-13
Indicator lights .........................................3-2
Turn signal indicator lights ....................3-3
High beam indicator light ......................3-3
Oil change indicator light ......................3-2
V-belt replacement indicator light .........3-3
K
Key identification number ........................9-1
M
Main switch/steering lock ........................3-1
Model label ..............................................9-2
P
Parking ....................................................5-4
Part locations...........................................2-1
Periodic maintenance and lubrication
chart ......................................................6-3
Pre-operation check list ...........................4-1
R
Rider backrest, adjusting .......................3-10
S
Safe-riding points ....................................1-2
Seat .........................................................3-9
Sidestand ..............................................3-12
Self-diagnosis device ..............................3-6
Spark plugs, checking .............................6-9
Specifications ..........................................8-1
Speedometer unit ....................................3-3
Starting the engine ..................................5-1
Starting off ...............................................5-2
Steering, checking .................................6-31
Storage ....................................................7-4
Storage compartments ..........................3-12
T
Throttle cable free play, adjusting .........6-22
Throttle grip and cable, checking and
lubricating ...........................................6-29
Tires ......................................................6-23
A
Acceleration and deceleration .................5-2
Air filter element, cleaning .....................6-19
Anti-theft alarm (optional) ........................3-5
B
Battery ...................................................6-32
Brake fluid level, checking .....................6-27
Brake fluid, changing .............................6-28
Brake lever (front)....................................3-7
Brake lever (rear) ....................................3-8
Brake levers, lubricating ........................6-28
Braking ....................................................5-3
C
Carburetors, adjusting ...........................6-21
Care.........................................................7-1
Centerstand and sidestand, checking
and lubricating ....................................6-30
Chain drive oil........................................6-16
Clock .......................................................3-5
Conversion table .....................................8-5
Coolant ..................................................6-17
Coolant temperature gauge.....................3-4
Cowlings and panels, removing and
installing ................................................6-6
E
Engine break-in .......................................5-4
Engine idling speed ...............................6-21
Engine oil and oil filter cartridge ............6-12
5GJ-9-EV 5/26/01 11:04 AM Page 96
