2002 YAMAHA BT1100 brake fluid

EAU01114PRE-OPERATION CHECKS
4-1
The condition of a vehicle is the owner’s responsibility.
Vital components can start to deteriorate quickly and unexpectedly, even if the vehicle remains unused (for example, as a result of ex-
posure to the elements).
Any damage, fluid leakage or loss of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a
thorough visual inspection, to check the following points before each ride.
EAU03439
Pre-operation check list
ITEM CHECK PAGE
• Check fuel level in fuel tank.
Fuel• Refuel if necessary.3-11
• Check fuel line for leakage.
• Check oil level in engine.
Engine oil• If necessary, add recommended oil to specified level. 6-6
• Check vehicle for oil leakage.
Final gear oil• Check vehicle for oil leakage.6-8
• Check operation.
• If soft or spongy, have Yamaha dealer bleed
hydraulic system.
Front brake
• Check fluid level in reservoir.3-10, 6-19
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Check operation.
• If soft or spongy, have Yamaha dealer bleed
hydraulic system.
Rear brake
• Check fluid level in reservoir.3-10, 6-19
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
4

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
EAU03685
Periodic maintenance and lubrication chart
NOTE:
•The annual checks must be performed every year, except if a kilometer-based maintenance is performed instead.
•From 50,000 km, repeat the maintenance intervals starting from 10,000 km.
•Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills.
6-2
6
ODOMETER READING (x 1,000 km)ANNUALN0. ITEM CHECK OR MAINTENANCE JOB
1 10203040CHECK
1*Fuel line•Check fuel hoses and vacuum hose for cracks
√√√√ √or damage.
2*Fuel filter•Check condition.√√
•Check condition.
√√
3 Spurk plugs•Clean and regap.
•Replace.√√
4
*Valves•Check valve clearance.
√√√√•Adjust.
5 Air filter element•Clean.√√•Replace.√√
6 Clutch•Check operation.
√√ √√ √
•Adjust.
•Check operation,fluid level and vehicle
for fluid leakeage. √√ √√ √ √
7*Front brake
(See NOTE on page 6-4).
•Replace brake pads. Whenever worm to the limit

EAU00462
ODOMETER READING (x 1,000 km)ANNUALN0. ITEM CHECK OR MAINTENANCE JOB
1 10203040CHECK
•Check operation, fluid level and vehicle
for fluid leakage. √√ √√ √ √
8*Rear brake(See NOTE on page 6-4).
•Replace brake pads. Whenever worm to the limit
9*Brake hoses•Check for cracks or damage.√√√√ √•Replace. (See NOTE on page 6-4). Every 4 years
10*Wheels•Check runout and for damage.√√√√
•Check tread depth and for
damage.
11
*Tires•Replace if necessary.√√√√
•Check air pressure.
•Correct if necessary.
12*Wheel bearings•Check bearing for looseness or damage.√√√√
13*Swingarm•Check operation and for excessive play.√√√√•Lubrificate with lithium-soap-based grease. Every 50,000 km
14*Steering bearings•Check bearing play and steering for roughness.√√ √√ √•Lubrificate with lithium-soap-based grease. Every 20,000 km
15
*Chassis fasteners•Make sure that all nuts, bolts and screws are properly
√√√√ √tightened.
16 Sidestand•Check operation.
√√√√ √
•Lubricate.
17
*Sidestand
•Check operation and for oil leakage.√√ √√ √ √switch
18*Front fork•Check operation and for oil leakage. √√√√
19
*Rear shock absorber
•Check operation and shock absorber for oil leakage.√√√√
assembly
PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
6

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.

1. Front brake pad wear indicator groove
PERIODIC MAINTENANCE AND MINOR REPAIR
11
2
1
EAU00715
Checking the front and rear
brake pads
The front and rear brake pads must be
checked for wear at the intervals specified
in the periodic maintenance and lubrica-
tion chart. Each brake pad is provided with
a wear indicator, which allows you to
check the brake pad wear without having
to disassemble the brake. To check the brake pad wear, check the
position of the wear indicator while apply-
ing the brake. If a brake pad has worn to
the point that the wear indicator almost
touches the brake disc, have a Yamaha
dealer replace the brake pads as a set.
EAU03776
Checking the brake fluid level
Insufficient brake fluid may allow air to en-
ter the brake system, possibly causing it to
become ineffective.
Before riding, check that the brake fluid is
above the minimum level mark and replen-
ish if necessary.
A low brake fluid level may indicate worn
brake pads and/or brake system leakage.
If the brake level is low, be sure to check
the brake pads for wear and the brake sys-
tem for leakage.
EAU00462
6-19
6
1. Front brake master cylinder
2. Minimum level mark 1. Rear brake pad wear indicator groove

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
Observe these precautions:
•When checking the fluid level, make
sure that the top of the brake fluid
reservoir is level.
•Use only the recommended quality
brake fluid, otherwise the rubber
seals may deteriorate, causing leak-
age and poor braking performance.
•Refill with the same type of brake flu-
id. Mixing fluids may result in a harm-
ful chemical reaction and lead to poor
braking performance.
•Be careful that water does not enter
the brake fluid reservoir when refill-
ing. Water will significantly lower the
boiling point of the fluid and may re-
sult in vapor lock.
•Brake fluid may deteriorate painted
surfaces or plastic parts. Always
clean up spilled fluid immediately.
•As the brake pads wear, it is normal
for the brake fluid level to gradually
go down. However, if the brake fluid
level goes down suddenly, have a
Yamaha dealer check the cause.
6-20
6
1. Screw (x 2)
2. Right panel
2
1
1. Pin (x 2)
2. Pin seat (x 2)
Recommended brake fluid: DOT 4
21
1. Rear brake fluid reservoir
2. Minimum level mark

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
a
A
EAU03976
Changing the brake fluid
Have a Yamaha dealer change the brake
fluid at the intervals specified in the NOTE
after the periodic maintenance and lubri-
cation chart. In addition, have the oil seals
of the master cylinders and calipers as
well as the brake hoses replaced at the in-
tervals listed below or whenever they are
damaged or leaking.
•Oil seals: Replace every two years.
•Brake hoses: Replace every four
years.
a. Distance between shift pedal and footrest
EAUB0011
Adjusting the shift pedal
position
The top of the shift pedal should be posi-
tioned approximately 45 mm below the top
of the footrest as shown. Periodically check the shift pedal position
and, if necessary, have a Yamaha dealer
adjust it.
6-21
6