Page 45 of 102

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
Adjusting the brake pedal position ..................... 6-17
Rear brake light switch adjustment .................... 6-18
Checking the front and rear brake pads ............. 6-19
Checking the brake and clutch fluid levels ......... 6-19
Changing the brake and clutch fluids ................. 6-21
Drive chain slack ................................................ 6-21
Lubricating the drive chain ................................. 6-23
Checking and lubricating the cables .................. 6-23Checking and lubricating the throttle
grip and cable ................................................. 6-24
Checking and lubricating the brake and
shift pedals ...................................................... 6-24
Checking and lubricating the brake and
clutch levers .................................................... 6-24
Checking and lubricating the centerstand and
sidestand ......................................................... 6-25
Checking the front fork ...................................... 6-25
Checking the steering ....................................... 6-26
Checking the wheel bearings ............................ 6-27
Battery ............................................................... 6-27
Replacing the fuses .......................................... 6-29
Replacing the headlight bulb ............................. 6-29
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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Page 74 of 102

PERIODIC MAINTENANCE AND MINOR REPAIR
6-29
6
EAU04410*
Replacing the fuses The fuse box is located under the seat.
(See page 3-11 for seat removal and
installation procedures.)
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off
the electrical circuit in question.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.
EC000103
CAUTION:_ Do not use a fuse of a higher amper-
age rating than recommended to
avoid causing extensive damage to
the electrical system and possibly a
fire. _3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAU04189
Replacing the headlight bulb This motorcycle is equipped with a
quartz bulb headlight. If the headlight
bulb burns out, replace it as follows.
1. Remove the headlight unit by re-
moving the screws.
1. Main fuse
2. Signaling system fuse
3. Headlight fuse
4. Ignition fuse
5. Turn signal light fuse
6. Spare fuse (× 2)
Specified fuses:
Main fuse: 40 A
Ignition fuse: 15 A
Signaling system fuse: 15 A
Headlight fuse: 15 A
Turn signal light fuse: 15 A
1. Screw (× 2)
E_5ea.book Page 29 Tuesday, October 2, 2001 3:54 PM
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-31
6
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.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. _
1. Tail/brake light bulb socket
1. Screw
1. Turn signal light bulb
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Page 93 of 102
SPECIFICATIONS
8-4
8
Battery
Model GT14B-4
Voltage, capacity 12 V, 12 Ah
Headlight typeQuar tz bulb (halogen)
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
E_5ea.book Page 4 Tuesday, October 2, 2001 3:54 PM
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 ................................. 6-26
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
E_5ea.book Page 2 Tuesday, October 2, 2001 3:54 PM