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6
PERIODIC MAINTENANCE AND MINOR REPAIR
Owner’s tool kit .................................................... 6-1
Periodic maintenance and lubrication chart ......... 6-2
Removing and installing the panel ....................... 6-5
Checking the spark plugs .................................... 6-6
Engine oil and oil filter element ............................ 6-7
Cleaning the air filter element ............................ 6-11
Adjusting the carburetors ................................... 6-12
Adjusting the engine idling speed ...................... 6-13
Adjusting the throttle cable free play .................. 6-13
Adjusting the valve clearance ............................ 6-14
Tires ................................................................... 6-14
Cast wheels ....................................................... 6-17
Clutch lever free play ......................................... 6-17
Adjusting the brake pedal position ..................... 6-18
Rear brake light switch adjustment .................... 6-19
Checking the front and rear brake pads ............. 6-19
Checking the brake and clutch fluid levels ......... 6-20
Changing the brake and clutch fluids ................. 6-21
Drive chain slack ................................................ 6-22
Lubricating the drive chain ................................. 6-23
Checking and lubricating the cables .................. 6-24Checking and lubricating the throttle grip and
cable ............................................................... 6-24
Checking and lubricating the brake and
shift pedals ...................................................... 6-25
Checking and lubricating the brake and
clutch levers .................................................... 6-25
Checking and lubricating the centerstand and
sidestand ......................................................... 6-25
Checking the front fork ...................................... 6-26
Checking the steering ....................................... 6-27
Checking the wheel bearings ............................ 6-27
Battery ............................................................... 6-28
Replacing the fuses .......................................... 6-29
Replacing the headlight bulb ............................. 6-30
Replacing a tail/brake light bulb ........................ 6-31
Replacing a turn signal light bulb ...................... 6-31
Front wheel ....................................................... 6-32
Rear wheel ........................................................ 6-34
Troubleshooting ................................................. 6-36
Troubleshooting chart ........................................ 6-37
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-31
6
EC000105
CAUTION:_ Do not touch the glass part of the
headlight bulb to keep it free from
oil, otherwise the transparency of
the glass, the luminosity of the bulb,
and the bulb life will be adversely af-
fected. Thoroughly clean off any dirt
and fingerprints on the headlight
bulb using a cloth moistened with
alcohol or thinner. _5. Install the headlight bulb cover,
and then connect the coupler.
6. Install the headlight unit by install-
ing the screws.
7. Have a Yamaha dealer adjust the
headlight beam if necessary.
EAU04411
Replacing a tail/brake light
bulb 1. Remove the seat. (See page 3-11 for
seat removal and installation proce-
dures.)
2. Remove the socket (together with the
bulb) by turning it counterclockwise.
3. Remove the defective bulb by push-
ing it in and turning it counterclock-
wise.
4. Insert a new bulb into the socket,
push it in, and then turn it clockwise
until it stops.
5. Install the socket (together with the
bulb) by turning it clockwise.
6. Install the seat.
EAU03497
Replacing a turn signal light
bulb 1. Remove the turn signal light lens
by removing the screw.
1. Do not touch the glass part of the bulb.
1. Tail/brake light bulb socket
1. Screw
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-32
6 2. Remove the defective bulb by
pushing it in and turning it counter-
clockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screw.
ECA00065
CAUTION:_ Do not overtighten the screw, other-
wise the lens may break. _
EAU04412
Front wheel To remove the front wheel
EW000122
WARNING
_
It is advisable to have a Yamaha
dealer service the wheel.
Securely support the motor-
cycle so that there is no danger
of it falling over.
_1. Disconnect the speedometer ca-
ble from the front wheel.2. Remove the brake hose holders
by removing the bolts.
3. Remove the brake calipers by re-
moving the bolts.
ECA00047
CAUTION:_ Do not pull the brake lever after the
brake caliper has been removed,
otherwise the brake pads will be
forced shut. _
1. Turn signal light bulb
1. Speedometer cable
1. Bolt (× 3)
2. Brake hose holder
3. Front brake caliperLeft
Right
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Page 93 of 102
SPECIFICATIONS
8-4
8
Battery
Model GT14B-4
Voltage, capacity 12 V, 12 Ah
Headlight typeHalogen bulb
Bulb voltage, wattage × quantity
Headlight 12 V, 60/55 W × 1
Tail/brake light 12 V, 5/21 W × 2
Auxiliary light 12 V, 4 W × 1
Turn signal light 12 V, 21 W × 4
Meter lighting 12 V, 1.7 W × 4
Neutral indicator light 12 V, 1.7 W × 1
High beam indicator light 12 V, 3.4 W × 1
Oil level warning light 12 V, 1.7 W × 1
Turn signal indicator light 12 V, 1.7 W × 2
Fuses
Main fuse 40 A
Headlight fuse 15 A
Signaling system fuse 15 A
Ignition fuse 15 A
Turn signal light fuse 15 A
U5WME0.book Page 4 Monday, July 29, 2002 10:25 AM
Page 99 of 102

INDEX
Starter (choke) lever .............................. 3-11
Starting a cold engine .............................. 5-1
Starting a warm engine ............................ 5-2
Start switch .............................................. 3-5
Steering, checking ................................. 6-27
Storage.................................................... 7-4
Storage compartment ............................ 3-13TTachometer ............................................. 3-3
Tail/brake light bulb, replacing ............... 6-31
Throttle cable free play, adjusting .......... 6-13
Throttle grip and cable, checking and
lubricating............................................ 6-24
Tires ...................................................... 6-14
Tool kit..................................................... 6-1
Troubleshooting..................................... 6-36
Troubleshooting chart ............................ 6-37
Turn signal indicator lights ....................... 3-2
Turn signal light bulb, replacing ............. 6-31
Turn signal switch .................................... 3-4VValve clearance, adjusting ..................... 6-14
Vehicle identification number ................... 9-1WWheel bearings, checking...................... 6-27
Wheel (front).......................................... 6-32
Installing........................................... 6-33
Removing......................................... 6-32
Wheel (rear) .......................................... 6-34
Installing........................................... 6-35
Removing......................................... 6-34
Wheels .................................................. 6-17
U5WME0.book Page 2 Monday, July 29, 2002 10:25 AM