2002 YAMAHA BT1100 oil level

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. Engine oil filler cap
PERIODIC MAINTENANCE AND MINOR REPAIR
1
NOTE:
Make sure that the motorcycle is posi-
tioned straight up when checking the oil
level. A slight tilt to the side can result in a
false reading.
2. Start the engine, warm it up for sever-
al minutes, and then turn it off.
3. Wait a few minutes until the oil set-
tles, and then check the oil level
through the check window located at
the bottom-left side of the crankcase.
NOTE:
The engine oil should be between the min-
imum and maximum level marks.
4. If the engine oil is below the minimum
level mark, add sufficient oil of the
recommended type to raise it to the
correct level.To change the engine oil without oil
filter element replacement
1. Start the engine, warm it up for sever-
al minutes, and then turn it off.
2. Place an oil pan under the engine to
collect the used oil.
3. Remove the engine oil filler cap and
drain bolt to drain the oil from the
crankcase.
6-7
6
2
31
EAU01712
Engine oil and oil filter element
The engine oil level should be checked be-
fore each ride. In addition, the oil must be
changed and the oil filter element replaced
at the intervals specified in the periodic
maintenance and lubrication chart.
To check the engine oil level
1. Place the motorcycle on a level sur-
face and hold it in an upright position.
1. Engine oil level window
2. Maximum level mark
3. Minimum level mark

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
EC000072
•In order to prevent clutch slippage
(since the engine oil also lubri-
cates the clutch), do not mix any
chemical additives with the oil or
use oils of a higher grade than
“CD”. In addition, do not use oils
labeled "ENERGY CONSERVING II"
or higher.
•Make sure that no foreign material
enters the crankcase.
CAUTION:6. Start the engine, and then let it idle for
several minutes while checking it for
oil leakage. If oil is leaking, immedi-
ately turn the engine off and check for
the cause.
NOTE:
After the engine is started, the engine oil
level warning light should go off if the oil
level is sufficient.
EC000067
If the oil level warning light flickers or
remains on, immediately turn the
engine off and have a Yamaha dealer
check the vehicle.
7. Turn the engine off, and then check
the oil level and correct it if neces-
sary.
NOTE:
Have a Yamaha dealer replace the oil filter
element when necessary.
CAUTION:
1. Engine oil drain bolt
6-8
6
1
4. Install the engine oil drain bolt, and
then tighten it to the specified torque.
5. Add the specified amount of the rec-
ommended engine oil, and then in-
stall and tighten the oil filler cap. Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 m·kgf)
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter element
replacement:
3.0 L
With oil filter element
replacement:
3.1 L
Total amount (dry engine):
3.6 L

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
3
1 2
To check the final gear oil level
1. Place the motorcycle on a level sur-
face and hold it in an upright position.
NOTE:
•The final gear oil level must be
checked on a cold engine.
•Make sure that the motorcycle is posi-
tioned straight up when checking the
oil level. A slight tilt to the side can
result in a false reading.2. Remove the oil filler bolt, and then
check the oil level in the final gear
case.
NOTE:
The oil level should be at the brim of the
filler hole.
3. If the oil is below the brim of the filler
hole, add sufficient oil of the recom-
mended type to raise it to the correct
level.
To change the final gear oil
1. Place an oil pan under the final gear
case to collect the used oil.
2. Remove the oil filler bolt and drain
bolt to drain the oil from the final gear
case.
6-9
6
1. Final gear oil drain bolt
2. Final gear oil filler bolt
3. Oil level
EAU04083
Final gear oil
The final gear case must be checked for oil
leakage before each ride. If any leakage is
found, have a Yamaha dealer check and
repair the motorcycle. In addition, the final
gear oil level must be checked and the oil
changed as follows at the intervals speci-
fied in the periodic maintenance and lubri-
cation chart.
EW000066WARNING0
•Make sure that no foreign material
enters the final gear case.
• Make sure that no oil gets on the
tire or wheel.

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
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)

SPECIFICATIONS
8-4
8
EAU01038
Battery
Model GT14B-4
Voltage, capacity 12 V, 12 Ah
Headlight typeQuartz bulb (halogen)
Bulb voltage, wattage x quantity
Headlight 12 V 60 W / 55 W x 1
Auxiliary light 12 V 5 W x 1
Tail/brake light 12 V 5 W / 21 W
Turn signal indicator light 12 V 10 W x 4
Meter lighting 14 V - 1.2 W x 4
Oil level warning light LED x 1
Neutral indicator light LED x 1
Turn signal light LED x 1
High beam indicator light LED x 1
Fuel level warning light LED x 1
Fuses
Main fuse 30 A
Backup fuse (odometer) 5 A
Ignition fuse 10 A
Headlight fuse 15 A
Carburetor heater fuse 15 A
Signaling system fuse 10 A

INDEX
A
Air filter element, cleaning ....................6-10
Anti-theft alarm (optional) ......................3-8
Auxiliary light bulb, replacing ................6-29
B
Battery ..................................................6-26
Brake and clutch levers, checking
and Lubricating ..................................6-23
Brake and shift pedals, checking
and Lubricating ..................................6-23
Brake fluid, changing ............................6-21
Brake fluid level, checking ....................6-19
Brake lever ..........................................3-10
Brake pads, checking ..........................6-19
Brake pedal ..........................................3-10
Brake pedal position, adjusting ............6-18
C
Cables, checking and lubricating..........6-22
Carburetors, adjusting ..........................6-12
Care ........................................................7-1
Clock ......................................................3-5
Clutch lever ............................................3-9
Clutch lever free play, adjusting ..........6-17
Consumer information ............................9-1
Controls ..................................................2-3
Conversion table ....................................8-5
D
Description ..............................................2-1
Controls and instrument ......................2-3Left view ..............................................2-1
Right view ............................................2-2
E
Engine break-in ......................................5-4
Engine idling speed, adjusting..............6-12
Engine oil and oil filter element ..............6-7
Engine stop switch..................................3-9
F
Final gear oil ..........................................6-9
Front fork
Adjusting ............................................3-15
Checking ............................................6-24
Front wheel
Installing ............................................6-33
Removing ..........................................6-32
Fuel ......................................................3-11
Fuel consumption, tips for reducing ......5-4
Fuel level warning light ..........................3-3
Fuel tank breather hose ......................3-12
Fuel tank cap ........................................3-11
Fuses, replacing ..................................6-28
H
Handlebar switches ................................3-8
Headlight bulb, replacing ......................6-29
Helmet holders ....................................3-14
High beam indicator light ........................3-3
Horn switch ............................................3-8I
Identification numbers ............................9-1
Idling speed, adjusting ..........................6-12
Ignition circuit cut-off system ................3-17
Instrument and control functions ............2-3
Instruments ............................................2-3
K
Key identification number ......................9-1
L
License plate light bulb, replacing ........6-32
Light switch ............................................3-9
M
Main switch/steering lock ..........................3-1
Model label ................................................9-2
N
Neutral indicator light ..............................3-2
O
Oil level warning light ............................3-2
Operation and important riding points ....5-1
P
Panels, removing and installing..............6-5
Parking....................................................5-5
Pass switch ............................................3-8
Periodic maintenance and lubrication
chart ....................................................6-2