2002 YAMAHA BT1100 warning

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
NOTE:
The tire tread depth limits may differ from
country to country. Always comply with the
local regulations.
EW000079WARNING0
•Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the motor-
cycle with excessively worn tires
decreases riding stability and can
lead to loss of control.
•The replacement of all wheel- and
brake-related parts, including the
tires, should be left to a Yamaha
dealer, who has the necessary pro-
fessional knowledge and experi-
ence.
Tire information
This motorcycle is equipped with cast
wheels and tubeless tires with valves.
EW000080WARNING0
•The front and rear tires should be
of the same make and design, oth-
erwise the handling characteris-
tics of the motorcycle cannot be
guaranteed.
•After extensive tests, only the tires
listed below have been approved
for this model by Yamaha Motor
Co., Ltd.
•Always make sure that the valve
caps are securely installed to pre-
vent air pressure leakage.
•Use only the tire valves and valve
cores listed below to avoid tire
deflation during a high-speed ride.
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6
Tire inspection
The tires must be checked before each ride.
If the center tread depth reaches the speci-
fied limit, if the tire has a nail or glass frag-
ments in it, or if the sidewall is cracked,
have a Yamaha dealer replace the tire im-
mediately.
1. Tire sidewall
a. Tire tread depth
Minimum tire
tread depth 1.6 mm
(front and rear)

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
EAU00684WARNING0
•This motorcycle is fitted with
super-high-speed tires. Note the
following points in order to make
the most efficient use of these
tires.
•Use only the specified replace-
ment tires. Other tires may run the
danger of bursting at super high
speeds.
•Brand-new tires can have a rela-
tively poor grip on certain road
surfaces until they have been
“broken in”.
•Therefore, it is advisable before
doing any high-speed riding to
ride conservatively for approxi-
mately 100 km (60 mi) after
installing a new tire.
•The tires must be warmed up
before a high-speed run.
•Always adjust the tire air pressure
according to the operating condi-
tions.
EAU03773
Cast wheels
To maximize the performance, durability,
and safe operation of your motorcycle,
note the following points regarding the
specified wheels.
The wheel rims should be checked for
cracks, bends or warpage before each
ride. If any damage is found, have a Yama-
ha dealer replace the wheel. Do not at-
tempt even the smallest repair to the
wheel. A deformed or cracked wheel must
be replaced.
The wheel should be balanced whenever
either the tire or wheel has been changed
or replaced. An unbalanced wheel can re-
sult in poor performance, adverse han-
dling characteristics, and a shortened tire
life.
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6
FRONT
REAR
Manufacturer Size Type
Dunlop 120/70-ZR17 (58W) D205F TL
Metzeler 120/70-ZR17 (58W) MEZ3F TL
Manufacturer Size Type
Dunlop 170/60-ZR17 (72W) D205 TL
Metzeler 170/60-ZR17 (72W) MEZ3 TL

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
A
a
EAU00712
Adjusting the brake pedal
position
The top of the brake pedal should be posi-
tioned approximately 43 mm below the top
of the footrest as shown. Periodically
check the brake pedal position and, if nec-
essary, have a Yamaha dealer adjust it.
EW000109WARNING0
A soft or spongy feeling in the brake
pedal can indicate the presence of air
in the hydraulic system. If there is air in
the hydraulic system, have a Yamaha
dealer bleed the system before operat-
ing the motorcycle. Air in the hydraulic
system will diminish the braking per-
formance, which may result in loss of
control and an accident.a. Distance between brake pedal and footrest
6-18
6

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
EAU02962
Checking and lubricating the
cables
The operation of all control cables and the
condition of the cables should be checked
before each ride, and the cables and cable
ends should be lubricated if necessary. If a
cable is damaged or does not move
smoothly, have a Yamaha dealer check or
replace it.
EW000112WARNING0
Damage to the outer sheath may inter-
fere with proper cable operation and
will cause the inner cable to rust.
Replace a damaged cable as soon as
possible to prevent unsafe conditions.
EAU03209
Checking and lubricating the
throttle grip and cable
The operation of the throttle grip and the
condition of the throttle cable should be
checked before each ride, and the cable
should be lubricated or replaced if neces-
sary.
NOTE:
Since the throttle grip must be removed to
access the throttle cable end, the throttle
grip and the cable should always be lubri-
cated at the same time.
1. Remove the throttle grip by removing
the screws.
2. Disconnect the throttle cable, hold it
up, and then apply several drops of
oil to the cable end, allowing it to trick-
le into the sheath.
3. Connect the throttle cable, and then
grease the inside of the throttle grip
housing.4. Grease the metal-to-metal contact
surface of the throttle grip, and then
install the grip by installing the
screws.
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Recommended lubricant:
Engine oil
Recommended lubricant:
Throttle cable:
Engine oil
Throttle grip housing
and grip:
Lithium-soap-based grease
(all-purpose grease)

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
EAU02939
Checking the front fork
The condition and operation of the front
fork must be checked as follows at the in-
tervals specified in the periodic mainte-
nance and lubrication chart.
To check the condition
EW000115WARNING0
Securely support the motorcycle so
that there is no danger of it falling over.
Check the inner tubes for scratches, dam-
age and excessive oil leakage.
To check the operation
1. Place the motorcycle on a level sur-
face and hold it in an upright position.
2. While applying the front brake, push
down hard on the handlebars several
times to check if the front fork com-
presses and rebounds smoothly.
EC000098
If any damage is found or the front fork
does not operate smoothly, have a
Yamaha dealer check or repair it.
CAUTION:
6-24
6
EAU03165
Checking and lubricating the
sidestand
The operation of the sidestand should be
checked before each ride, and the side-
stand pivot and metal-to-metal contact sur-
faces should be lubricated if necessary.
EW000113WARNING0
If the sidestand does not move up and
down smoothly, have a Yamaha dealer
check or repair it.
Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
EAU00794
Checking the steering
Worn or loose steering bearings may
cause danger. Therefore, the operation of
the steering must be checked as follows at
the intervals specified in the periodic main-
tenance and lubrication chart.
1. Place a stand under the engine to
raise the front wheel off the ground.
EW000115WARNING0
Securely support the motorcycle so
that there is no danger of it falling over.
2. Hold the lower ends of the front fork
legs and try to move them forward
and backward. If any free play can be
felt, have a Yamaha dealer check or
repair the steering.
EAU01144
Checking the wheel bearings
The front and rear wheel bearings must be
checked at the intervals specified in the
periodic maintenance and lubrication
chart. If there is play in the wheel hub or if
the wheel does not turn smoothly, have a
Yamaha dealer check the wheel bearings.
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EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
EAU00800
Battery
This motorcycle is equipped with a sealed-
type (MF) battery, which does not require
any maintenance. There is no need to
check the electrolyte or to add distilled wa-
ter.
EC000101
Never attempt to remove the battery
cell seals, as this would permanently
damage the battery.
EW000116WARNING0
•Electrolyte is poisonous and dan-
gerous since it contains sulfuric
acid, which causes severe burns.
Avoid any contact with skin, eyes
or clothing and always shield your
eyes when working near batteries.
In case of contact, administer the
following FIRST AID.
CAUTION:
•EXTERNAL: Flush with plenty of
water.
•INTERNAL: Drink large quanti-
ties of water or milk and imme-
diately call a physician.
•EYES: Flush with water for 15
minutes and seek prompt med-
ical attention.
•Batteries produce explosive
hydrogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and provide
sufficient ventilation when charg-
ing it in an enclosed space.
•KEEP THIS AND ALL BATTERIES
OUT OF THE REACH OF CHIL-
DREN.
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6
12
1
2
+
-
1. Screw (x 2)
2. Storage compartment1. Positive battery terminal
2. Negative battery terminal

1. Screw (x 2)
2. Cowling
PERIODIC MAINTENANCE AND MINOR REPAIR
2
1
1
2
1
1
EAUB0013
Replacing the headlight and
auxiliary light bulb
This motorcycle is equipped with a quartz
bulb headlight. If the headlight bulb or aux-
iliary light bulb burns out, replace it as fol-
lows.
NOTE:
Skip steps 6-10 if only the headlight bulb is
being replaced. Skip steps 2-5 if only the
auxiliary light bulb is being replaced.1. Remove the headlight by removing
the screws, then tilt the cowling for-
ward.
2. Disconnect the headlight coupler and
the auxiliary light leads, and then re-
move the headlight bulb cover.
3. Remove the headlight bulb holder by
turning it counterclockwise, and then
remove the defective bulb.
EW000119WARNING0
Headlight bulbs get very hot. There-
fore, keep flammable products away
from a lit headlight bulb, and do not
touch the bulb until it has cooled down.
4. Place a new bulb into position, and
then secure it with the bulb holder.
EAU00462
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1. Headlight bulb cover
2. Auxiliary light bulb holder1. Headlight coupler