6
PERIODIC MAINTENANCE AND MINOR REPAIR
Owner’s tool kit .................................................... 6-1
Periodic maintenance and lubrication chart ......... 6-2
Checking the spark plugs .................................... 6-5
Engine oil and oil filter element ............................ 6-7
Final gear oil ........................................................ 6-9
Cleaning the air filter element ............................ 6-11
Adjusting the carburetors .................................... 6-13
Adjusting the engine idling speed ....................... 6-13
Adjusting the throttle cable free play ................... 6-14
Adjusting the valve clearance ............................. 6-14
Tires ................................................................... 6-15
Spoke wheels ..................................................... 6-17
Adjusting the clutch lever free play .................... 6-18
Adjusting the brake lever free play ...................... 6-19
Adjusting the brake pedal position and
free play ........................................................... 6-19
Adjusting the rear brake light switch ................... 6-21
Checking the front brake pads and rear
brake shoes ..................................................... 6-21
Checking the brake fluid level ............................ 6-22
Changing the brake fluid ..................................... 6-23Checking and lubricating the cables .................. 6-23
Checking 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 sidestand ............. 6-25
Lubricating the rear suspension ........................ 6-26
Checking the front fork ....................................... 6-27
Checking the steering ........................................ 6-27
Checking the wheel bearings ............................. 6-28
Battery ............................................................... 6-29
Replacing the fuses .......................................... 6-31
Replacing the headlight bulb .............................. 6-31
Replacing a turn signal light bulb or the
tail/brake light bulb ........................................... 6-33
Supporting the motorcycle ................................ 6-33
Front wheel ....................................................... 6-34
Rear wheel ........................................................ 6-35
Troubleshooting .................................................. 6-37
Troubleshooting chart ........................................ 6-38
E_3bt.book Page 1 Thursday, September 7, 2000 10:01 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-31
6
EAU00818
Replacing the fuses The fuse box is located under the rider
seat. (See page 3-8 for rider seat re-
moval 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.
EAU03003
Replacing the headlight bulbThis 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. Headlight fuse
3. Signaling system fuse
4. Ignition fuse
5. Spare fuse (´ 2)
Specified fuses:
Main fuse: 30 A
Headlight fuse: 15 A
Signaling system fuse: 15 A
Ignition fuse: 15 A
1. Screw (´ 2)
E_3bt.book Page 31 Thursday, September 7, 2000 10:01 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-33
6
EAU00855
Replacing a turn signal light
bulb or the tail/brake light
bulb1. Remove the lens by removing the
screws.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
screws.
EC000108
CAUTION:@ Do not overtighten the screws, oth-
erwise the lens may break. @
EAU01579
Supporting the motorcycle Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other mainte-
nance requiring the motorcycle to
stand upright. Check that the motor-
cycle is in a stable and level position
before starting any maintenance. A
strong wooden box can be placed un-
der the engine for added stability.
To service the front wheel
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der the frame in front of the rear
wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.
1. Screw (´ 2)
1. Tail/brake light bulb (´ 2)
E_3bt.book Page 33 Thursday, September 7, 2000 10:01 AM
SPECIFICATIONS
8-4
8
Bulb voltage, wattage ´ quantity
Headlight 12 V, 60/55 W ´ 1
Auxiliary light 12 V, 4 W ´ 1 (except for GB)
12V, 3.4 W ´ 1 (for GB)
Tail/brake light 12 V, 5/21 W ´ 2
Front turn signal light 12 V, 21 W ´ 2
Rear turn signal light 12 V, 21 W ´ 2
Meter lighting 14 V, 3 W ´ 1
Neutral indicator light 14 V, 3 W ´ 1
High beam indicator light 12 V, 1.7 W ´ 1
Turn signal indicator light 14 V, 3 W ´ 1
Fuses
Main fuse 30 A
Ignition fuse 15 A
Signaling system fuse 15 A
Headlight fuse 15 A
E_3bt.book Page 4 Thursday, September 7, 2000 10:01 AM
INDEX
Spark plugs, checking ............................. 6-5
Specifications .......................................... 8-1
Speedometer unit .................................... 3-2
Starter (choke) lever ................................ 3-6
Starting a cold engine .............................. 5-1
Starting a warm engine ............................ 5-2
Start switch .............................................. 3-3
Steering, checking ................................. 6-27
Steering lock............................................ 3-7
Storage.................................................... 7-4
Supporting the motorcycle ..................... 6-33
Suspension (rear), lubricating ................ 6-26TThrottle cable free play, adjusting .......... 6-14
Throttle grip and cable, checking and
lubricating............................................ 6-24
Tires ...................................................... 6-15
Tool kit..................................................... 6-1
Troubleshooting..................................... 6-37
Troubleshooting chart ............................ 6-38
Turn signal indicator light ......................... 3-1
Turn signal or tail/brake light bulb,
replacing ............................................. 6-33
Turn signal switch .................................... 3-2VValve clearance, adjusting ..................... 6-14
Vehicle identification number ................... 9-1
WWheel bearings, checking ..................... 6-28
Wheel (front) ......................................... 6-34
Installing .......................................... 6-35
Removing ........................................ 6-34
Wheel (rear) .......................................... 6-35
Installing .......................................... 6-37
Removing ........................................ 6-35
Wheels .................................................. 6-17
E_3bt.book Page 2 Thursday, September 7, 2000 10:01 AM