2002 YAMAHA BT1100 brake light

22
0 20
01
80 160 14
0
12
0
1
0080
604020k
m
/
h345
6
7
2
1
0
3456721
8
DESCRIPTIONEAU00026
2-3
2
1. Clutch lever (page 3-9)
2. Left handlebar switches (page 3-8)
3. Instruments and warning lights (page 3-2)
4. Main switch and steering lock (page 3-1)
5. Right handlebar switches (page 3-9)
6. Throttle grip (page 6-13)
7. Front brake lever (page 3-10)
8. Fuel tank cap (page 3-11)
Controls and instruments

3
Main switch/steering lock .................................................................... 3-1
Indicator and warning lights ................................................................ 3-2
Speedometer unit ................................................................................ 3-3
Tachometer ........................................................................................ 3-6
Self-diagnosis device .......................................................................... 3-6
Anti-theft alarm (optional) .................................................................... 3-8
Handlebar switches ............................................................................ 3-8
Clutch lever ........................................................................................ 3-9
Shift pedal ........................................................................................ 3-10
Brake lever ........................................................................................ 3-10
Brake pedal ...................................................................................... 3-10
Fuel tank cap .................................................................................... 3-11
Fuel .................................................................................................. 3-11
Fuel tank breather hose .................................................................... 3-12
Starter (choke) lever ........................................................................ 3-12
Seat .................................................................................................. 3-13
Helmet holders .................................................................................. 3-14
Storage compartment ...................................................................... 3-14
Adjusting the front fork ...................................................................... 3-15
Adjusting the shock absorber assembly .......................................... 3-15
Sidestand .......................................................................................... 3-16
Ignition circuit cut-off system ............................................................ 3-17
INSTRUMENT AND CONTROL FUNCTIONSEAU00027

PRE-OPERATION CHECKSEAU01114
4-2
4
ITEM CHECK PAGE
• Check operation.
• Lubricate cable if necessary.
Clutch
• Check lever free play.3-9, 6-17, 6-23
• Adjust if necessary.
• Make sure that operation is smooth.
• Lubricate throttle grip, housing and cables
Throttle gripif necessary.6-13, 6-22
• Check free play.
• If necessary, have Yamaha dealer make adjustment.
• Make sure that operation is smooth.
Control cables
• Lubricate if necessary.6-22
• Check for damage.
• Check tire condition and tread depth.
Wheels and tires
• Check air pressure.6-13, 6-16
• Correct if necessary.
Brake and shift • Make sure that operation is smooth.
pedals• Lubricate pedal pivoting points if necessary.6-23
Brake and clutch • Make sure that operation is smooth.
levers• Lubricate lever pivoting points if necessary.6-23
• Make sure that operation is smooth.
Sidestand
• Lubricate pivot if necessary.6-24
Chassis • Make sure that all nuts, bolts and screws are properly tightened.
fasteners• Tighten if necessary.–
Instruments, lights, • Check operation.
signals and switches• Correct if necessary.3-2, 3-3, 3-8, 3-9
Engine stop
switch• Check operation.3-9
Sidestand • Check operation of ignition circuit cut-off system.
switch• If system is defective, have Yamaha dealer check vehicle.3-18

6
Owner’s tool kit .............................................................. 6-1
Periodic maintenance and lubrication chart .................... 6-2
Removing and installing panels ...................................... 6-5
Checking the spark plugs ................................................ 6-5
Engine oil and oil filter element ........................................ 6-7
Final gear oil .................................................................... 6-9
Cleaning the air filter element .......................................... 6-10
Adjusting the carburetors ................................................ 6-12
Adjusting the engine idling speed .................................... 6-12
Adjusting the throttle cable free play................................ 6-13
Adjusting the valve clearance .......................................... 6-13
Tires ................................................................................ 6-14
Cast wheels .................................................................... 6-16
Adjusting the clutch lever free play .................................. 6-17
Adjusting the brake pedal position .................................. 6-18
Checking the front and rear brake pads .......................... 6-19
Checking the brake fluid level .......................................... 6-19
Changing the brake fluid .................................................. 6-21
Adjusting the shift pedal position .................................... 6-21
Checking and lubricating the cables ................................ 6-22Checking and lubricating the
throttle grip and cable ...................................................... 6-22
Checking and lubricating the brake and shift
pedals .............................................................................. 6-23
Checking and lubricating the brake and
clutch levers .................................................................... 6-23
Checking and lubricating the sidestand .......................... 6-24
Checking the front fork .................................................... 6-24
Checking the steering ...................................................... 6-25
Checking the wheel bearings .......................................... 6-25
Battery ............................................................................ 6-26
Replacing the fuses ........................................................ 6-28
Replacing the headlight and auxiliary light bulb .............. 6-29
Replacing a turn signal light bulb .................................... 6-31
Replacing the tail/brake light bulb .................................... 6-31
Replacing the license plate light bulb .............................. 6-32
Front wheel ...................................................................... 6-32
Rear wheel ...................................................................... 6-33
Troubleshooting .............................................................. 6-35
Troubleshooting chart ...................................................... 6-36
PERIODIC MAINTENANCE AND MINOR REPAIREAU00462

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
EAU03884
NOTE:
•The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
•Hydraulic brake service
•Regularly check and, if necessary, correct the brake fluid level.
•Every two years replace the internal components of the brake master cylinders and calipers, and change the brake fluid.
•Replace the brake hoses every four years and if cracked or damaged.
6-4
6
ODOMETER READING (x 1,000 km)ANNUALN0. ITEM CHECK OR MAINTENANCE JOB
1 10203040CHECK
Rear suspension
•Check operation. √√√√
20*relay arm and
connecting arm
•Lubricate with lithium-soap-based grease.√√
pivoting points
•Check starter (choke) operation.
21
*Carburators•Adjust engine idling speed and √√ √√ √ √synchronization.
22 Engine oil•Change.√√ √√ √ √
23Engine oil filter
•Replace. √√√
element
•Check oil level and vehicle for oil
√√ √
24Final gear
leakage.oil
•Change.√√√
25Moving parts and
•Lubricate.√√√√ √
cables
•Check the air cut valve and reed valve for
26
*Air induction
damage.
√√√√ √
system
•Replace the entire air induction system if
necessary.
27
*Lights, signals and •Check operation.
√√ √√ √ √
switches•Adjust headlight beam.

EAU00462
1. Screw
2. Turn signal light len
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
1. Screw (x 2)
11
NOTE:
Before installing the headlight, be sure to
hook the headlight and auxiliary light bulb
leads into the guide to the left of the head-
light as shown.
12. Have a Yamaha dealer adjust the
headlight beam if necessary.
EAU03497
Replacing a turn signal light
bulb
1. Remove the turn signal light lens by
removing the screw.
2. Remove the defective bulb by push-
ing it in and turning it counterclock-
wise.
3. Insert a new bulb into the socket,
push it in, and then turn it clockwise
until it stops.
4. Install the lens by installing the screw.
EC000065
Do not overtighten the screw, other-
wise the lens may break.
CAUTION:
EAU01623
Replacing the tail/brake light
bulb
1. Remove the tail/brake light lens by re-
moving the screws.
2. Remove the defective bulb by push-
ing it in and turning it counterclock-
wise.
3. Insert a new bulb into the socket,
push it in, and then turn it clockwise
until it stops.
4. Install the lens by installing the
screws.
EC000108
Do not overtighten the screws, other-
wise the lens may break.
CAUTION:
6-31
6
1
1. Leads guide

EAU00462
1. Nut (x 2) 1. Bulb socket
2. Bulb
PERIODIC MAINTENANCE AND MINOR REPAIR
1
1 2
1. Brake caliper (x 2)
2. Wheel axle pinch bolt
3. Wheel axle
4. Spacer (x 2)








EAUB0019
Replacing the license plate
light bulb
1. Remove the license plate light by re-
moving the nuts.
2. Remove the bulb socket from the li-
cense plate light by pulling it out.
3. Remove the defective bulb by pulling
it out.
4. Insert a new bulb into the socket.
5. Install the bulb socket into the license
plate light.
6. Install the license plate light by in-
stalling the nuts.
EAUB0015
Front wheel
To remove the front wheel
EW000122WARNING0
It is advisable to have a Yamaha dealer
service the wheel.
Securely support the motorcycle so
that there is no danger of it falling over.
1. Mark either side of the wheel so that it
can be installed in the original running
direction.
2. Remove the brake calipers by remov-
ing the bolts.
ECA00047
Do not pull the brake lever after the
brake caliper has been removed, other-
wise the brake pads will be forced shut.
3. Loosen the front wheel axle pinch
bolt, then the wheel axle.
4. Pull the wheel axle out together with
the spacers, and then remove the
wheel.
CAUTION:
6-32
6

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
2. Remove the brake torque rod bolt
from the brake caliper bracket, and
then turn the caliper up, away from
the disc.
3. Remove the wheel axle together with
the spacers.
4. Pull the wheel to the right to separate
it from the final gear case, and then
remove it.
ECA00062
Do not push the brake pedal after the
wheel has been removed together with
the brake disc, otherwise the brake
pads will be forced shut.
CAUTION:
EAUB0018
To install the rear wheel
1. Apply a light coating of lithium-soap-
based grease to the splines of the fi-
nal gear case and wheel hub.
2. Install the wheel by inserting the
wheel axle, then installing the axle
nut.
3. Turn the caliper down so that it fits
over the brake disc.
NOTE:
Make sure that there is enough space
between the brake pads before installing
the brake caliper onto the brake disc.
4. Install the wheel axle pinch bolt.
5. Install the brake torque rod bolt at the
brake caliper bracket.6. Install the wheel axle pinch bolt.
7. Lower the rear wheel so that it is on
the ground.
8. Tighten the axle nut, wheel axle pinch
bolt, and brake torque rod bolt to the
specified torques.
6-34
6
Tightening torques:
Axle nut:
110 Nm (11.0 m·kgf)
Wheel axle pinch bolt:
22 Nm (2.2 m·kgf)
Brake torque rod bolt:
35 Nm (3.5 m·kgf)