6
PERIODIC MAINTENANCE AND MINOR REPAIR
Tool kit................................................................... 6-1
Periodic maintenance and lubrication ................... 6-3
Spark plugs........................................................... 6-6
Engine oil .............................................................. 6-7
Final gear oil ....................................................... 6-10
Coolant ............................................................... 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........................ 6-16
Front brake lever free play adjustment ................ 6-17
Rear brake pedal height adjustment ................... 6-17Brake light switch adjustment ............................. 6-18
Checking the front and rear brake pads ............. 6-19
Inspecting the brake fluid level ........................... 6-19
Brake fluid replacement ..................................... 6-21
Brake and shift pedal lubrication ........................ 6-21
Brake and clutch lever lubrication ...................... 6-22
Sidestand lubrication.......................................... 6-22
Front fork inspection ........................................... 6-23
Battery................................................................ 6-23
Fuse replacement .............................................. 6-25
Headlight bulb replacement ............................... 6-27
Turn signal and taillight bulb replacement .......... 6-28
Troubleshooting .................................................. 6-28
Troubleshooting chart ......................................... 6-29
E_4YP_PeriodicTOC.fm Page 1 Wednesday, October 6, 1999 10:05 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-27
6
EAU00833
Headlight bulb replacementThis motorcycle is equipped with a
quartz bulb headlight.
If the headlight bulb burns out, replace
the bulb as follows:
1. Remove the headlight unit screws.2. Remove the connectors, the head-
light unit and then the bulb cover.
3. Turn the bulb holder counterclock-
wise to remove it and remove the
defective bulb.
EW000119
WARNING
@ Keep flammable products and your
hands away from a bulb while it is
on, as it is hot. Do not touch a bulb
until it cools down. @4. Put a new bulb into position and
secure it in place with the bulb
holder.
EC000105
CAUTION:@ Avoid touching the glass part of a
bulb. Keep it free from oil; other-
wise, the transparency of the glass,
life of the bulb, and luminous flux
will be adversely affected. If oil gets
on a bulb, thoroughly clean it with a
cloth moistened with alcohol or lac-
quer thinner. @5. Install the bulb cover, connectors
and headlight unit. Ask a Yamaha
dealer to adjust the headlight
beam if necessary.
1. Screw (´ 2)
1. Connector (´ 3)
E_4YP_Periodic.fm Page 27 Wednesday, October 6, 1999 10:05 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-28
6
EAU00855
Turn signal and taillight bulb
replacement1. Remove the screws and the lens.
2. Push the bulb inward and turn it
counterclockwise.
3. Place a new bulb in the socket.
Push the bulb inward and turn it
clockwise until it engages into the
socket.
4. Install the lens and the screws.
EC000108
CAUTION:@ Do not over-tighten the screws as
the lens may break. @
EAU01008
TroubleshootingAlthough Yamaha motorcycles receive
a rigid inspection before shipment from
the factory, trouble may occur during
operation.
Any problem in the fuel, compression,
or ignition systems can cause poor
starting and loss of power. The trouble-
shooting chart describes a quick, easy
procedure for making checks.
If your motorcycle requires any repair,
bring it to a Yamaha dealer. The skilled
technicians at a Yamaha dealership
have the tools, experience, and know-
how to properly service your motor-
cycle. Use only genuine Yamaha parts
on your motorcycle. Imitation parts may
look like Yamaha parts, but they are of-
ten inferior. Consequently, they have a
shorter service life and can lead to ex-
pensive repair bills.
1. Screw (´ 2)
1. Screw (´ 3)
E_4YP_Periodic.fm Page 28 Wednesday, October 6, 1999 10:05 AM
SPECIFICATIONS
8-4
8
Headlight typeQuar tz bulb (halogen)
Bulb voltage, wattage ´ quantity
Headlight 12 V, 60/55 W ´ 1
Auxiliary light 12 V, 4 W ´ 1
Tail/brake light 12 V, 5/21 W ´ 1
Turn signal lights 12 V, 21 W ´ 4
Meter light 14 V, 1.4 W ´ 2
Neutral indicator light 12 V, 1.7 W ´ 1
High beam indicator light 12 V, 1.7 W ´ 1
Oil level indicator light 12 V, 1.7 W ´ 1
Turn indicator light 12 V, 1.7 W ´ 1
Fuel level indicator light 14 V, 3 W ´ 1
Engine overheat indicator light 12 V, 1.7 W ´ 1
Overdrive / Engine trouble
indicator light 12 V, 1.7 W ´ 1
Fuses
Main fuse 30 A
Ignition fuse 10 A
Signaling system fuse 20 A
Headlight fuse 20 A
Fan fuse 10 A
Odometer fuse 5 A
E_4YP_Spec.fm Page 4 Wednesday, October 6, 1999 10:06 AM
10-INDEXAAdjusting front fork preload .................... 3-12
Adjusting rear shock absorber
preload ................................................ 3-13
Antitheft alarm (optional) ..........................3-3BBattery ................................................... 6-23
Brake and clutch lever lubrication........... 6-22
Brake and shift pedal lubrication ............ 6-21
Brake fluid replacement ......................... 6-21
Brake light switch adjustment ................. 6-18CCarburetor adjustment ........................... 6-11
Care.........................................................7-1
Checking the front and
rear brake pads ................................... 6-19
Clutch lever ..............................................3-5
Clutch lever free play adjustment ........... 6-16
Controls/Instruments ................................2-3
Coolant .................................................. 6-10DDimmer switch .........................................3-4EEngine break-in........................................5-5
Engine oil .................................................6-7
Engine overheat indicator light .................3-2
Engine stop switch ...................................3-5FFinal gear oil .......................................... 6-10
Front brake lever ......................................3-6
Front brake lever free play
adjustment .......................................... 6-17
Front fork inspection .............................. 6-23
Fuel ......................................................... 3-7
Fuel cock ................................................. 3-8
Fuel level indicator light ........................... 3-1
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 holders ...................................... 3-11
High beam indicator light ......................... 3-1
Horn switch ............................................. 3-4IIdentification number records................... 9-1
Idle speed adjustment ........................... 6-11
Indicator lights ......................................... 3-1
Engine overheat indicator light ........... 3-2
Fuel level indicator light ...................... 3-1
High beam indicator light .................... 3-1
Neutral indicator light.......................... 3-1
Oil level indicator light .........................3-2
Overdrive / Engine trouble
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 ............................................3-5MMain switch ..............................................3-1
Model label ..............................................9-2NNeutral indicator light ...............................3-1OOil level indicator light ..............................3-2
Overdrive / Engine trouble indicator
light ........................................................3-2PParking.....................................................5-6
Pass switch ..............................................3-4
Periodic maintenance and lubrication .......6-3
Pre-operation check list ............................4-1RRear brake pedal .....................................3-6
Rear brake pedal height adjustment.......6-17
Rider seat ..............................................3-10
Right view ................................................2-2
E_4YPIX.fm Page 1 Wednesday, October 6, 1999 10:07 AM
INDEX
SShifting .................................................... 5-3
Shift pedal ............................................... 3-6
Sidestand .............................................. 3-15
Sidestand/clutch switch operation
check .................................................. 3-15
Sidestand lubrication ............................. 6-22
Spark plugs ............................................. 6-6
Specifications .......................................... 8-1
Speedometer ........................................... 3-3
Starter (choke) knob ................................ 3-9
Starting a warm engine ............................ 5-3
Starting the engine .................................. 5-1
Start switch .............................................. 3-5
Steering lock............................................ 3-9
Storage.................................................... 7-4TThrottle cable free play inspection ......... 6-12
Tips for reducing fuel consumption .......... 5-4
Tires ...................................................... 6-13
Tool kit..................................................... 6-1
Troubleshooting..................................... 6-28
Troubleshooting chart ............................ 6-29
Turn indicator light ................................... 3-2
Turn signal and taillight bulb
replacement ........................................ 6-28
Turn signal switch .................................... 3-4
VValve clearance adjustment .................. 6-12
Vehicle identification number................... 9-1WWheels .................................................. 6-15
E_4YPIX.fm Page 2 Wednesday, October 6, 1999 10:07 AM