6
PERIODIC MAINTENANCE AND MINOR REPAIR
Tool kit................................................................... 6-1
Periodic maintenance and lubrication ................... 6-2
Panel removal and installation .............................. 6-5
Panel A ................................................................. 6-5
Spark plugs........................................................... 6-6
Engine oil .............................................................. 6-7
Final gear oil ......................................................... 6-9
Air filter ............................................................... 6-10
Carburetor adjustment ........................................ 6-11
Idle speed adjustment ........................................ 6-11
Throttle cable free play inspection ...................... 6-12
Valve clearance adjustment ................................ 6-12
Tires .................................................................... 6-13
Wheels ................................................................ 6-15
Clutch lever free play adjustment........................ 6-15
Front brake lever free play adjustment ................ 6-16
Rear brake pedal height adjustment ................... 6-17
Brake light switch adjustment ............................. 6-17Checking the front and rear brake pads ............. 6-18
Inspecting the brake fluid level ........................... 6-19
Brake fluid replacement ..................................... 6-20
Cable inspection and lubrication ........................ 6-20
Throttle cable and grip lubrication ...................... 6-20
Brake and shift pedal lubrication ........................ 6-21
Brake and clutch lever lubrication ...................... 6-21
Sidestand lubrication.......................................... 6-21
Front fork inspection ........................................... 6-22
Steering inspection ............................................ 6-22
Wheel bearings .................................................. 6-23
Battery................................................................ 6-23
Fuse replacement .............................................. 6-25
Headlight bulb replacement ............................... 6-27
Turn signal and taillight bulb replacement .......... 6-28
Troubleshooting .................................................. 6-29
Troubleshooting chart ......................................... 6-30
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-6
6
EAU01673
Spark plugsRemoval
1. Remove the rear right and front
left cylinder head covers by pulling
them outward as shown.
2. Remove the spark plug caps.
3. Use the spark plug wrench in the
tool kit to remove the spark plugs
as shown.Inspection
The spark plug is an important engine
component and is easy to inspect. The
condition of the spark plug can indicate
the condition of the engine.
Normally, all spark plugs from the
same engine should have the same
color on the white insulator around the
center electrode. The ideal color at this
point is a medium-to-light tan color for a
motorcycle that is being ridden normal-
ly. If one spark plug shows a distinctly
different color, there could be some-
thing wrong with the engine.
Do not attempt to diagnose such prob-
lems yourself. Instead, take the motor-
cycle to a Yamaha dealer. You shouldperiodically remove and inspect the
spark plugs because heat and deposits
will cause any spark plug to slowly
break down and erode. If electrode ero-
sion becomes excessive, or if carbon
and other deposits are excessive, you
should replace the spark plug with the
specified plug.1. Cylinder head cover
1. Spark plug wrench
Specified spark plug:
BPR7ES (NGK) or
W22EPR-U (DENSO)
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10-INDEXAAir filter .................................................. 6-10
Antitheft alarm (optional) ..........................3-4BBattery ................................................... 6-23
Brake and clutch lever lubrication........... 6-21
Brake and shift pedal lubrication ............ 6-21
Brake fluid replacement ......................... 6-20
Brake light switch adjustment ................. 6-17CCable inspection and lubrication ............ 6-20
Carburetor adjustment ........................... 6-11
Care.........................................................7-1
Checking the front and rear brake
pads .................................................... 6-18
Clutch lever ..............................................3-5
Clutch lever free play adjustment ........... 6-15
Controls/Instruments ................................2-3DDimmer switch ........................................... 3-4EEngine break-in........................................5-6
Engine oil .................................................6-7
Engine stop switch ...................................3-5
Engine trouble indicator light ....................3-3
FFinal gear oil ............................................ 6-9
Front brake lever ..................................... 3-6
Front brake lever free play adjustment ... 6-16
Front fork inspection .............................. 6-22
Fuel ......................................................... 3-7
Fuel cock ................................................. 3-8
Fuel tank cap ........................................... 3-7
Fuse replacement.................................. 6-25GGive safety the right of way ...................... 1-1HHandlebar switches ................................. 3-4
Dimmer switch ................................... 3-4
Engine stop switch ............................. 3-5
Horn switch ........................................ 3-4
Lights switch ...................................... 3-5
Pass switch ........................................ 3-4
Start switch ........................................ 3-5
Turn signal switch .............................. 3-4
Headlight bulb replacement ................... 6-27
Helmet holder ........................................ 3-11
High beam indicator light ......................... 3-3
Horn switch ............................................. 3-4IIdentification number records................... 9-1
Idle speed adjustment ........................... 6-11
Indicator lights ......................................... 3-2
Engine trouble indicator light .............. 3-3
High beam indicator light ....................3-3
Neutral indicator light ..........................3-2
Oil level indicator light .........................3-2
Turn indicator light ..............................3-2
Inspecting the brake fluid level ...............6-19
KKey identification number .........................9-1LLeft view...................................................2-1
Lights switch ............................................3-5
Luggage strap holders ...........................3-15MMain switch/Steering lock .........................3-1
Model label ..............................................9-2NNeutral indicator light ...............................3-2OOil level indicator light ..............................3-2PPanel A ....................................................6-5
Panel removal and installation..................6-5
Parking.....................................................5-7
Pass switch ..............................................3-4
Periodic maintenance and lubrication .......6-2
Pre-operation check list ............................4-1
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