check engine YAMAHA BT1100 2002 Owner's Manual

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
a
EAU00635
Adjusting the throttle
cable free play
The throttle cable free play should mea-
sure 3-5 mm at the throttle grip. Periodical-
ly check the throttle cable free play and, if
necessary, have a Yamaha dealer adjust
it.
EAU00637
Adjusting the valve clearance
The valve clearance changes with use, re-
sulting in improper air-fuel mixture and/or
engine noise. To prevent this from occur-
ring, the valve clearance must be adjusted
by a Yamaha dealer at the intervals speci-
fied in the periodic maintenance and lubri-
cation chart.
6-13
6
a. Throttle cable free play
1
ba
3. Check the engine idling speed and, if
necessary, adjust it to specification by
turning the throttle stop screw. To in-
crease the engine idling speed, turn
the screw in direction a. To decrease
the engine idling speed, turn the screw
in direction b.
Engine idling speed:
950-1,050 r/min
NOTE:
If the specified idling speed cannot be
obtained as described above, have a
Yamaha dealer make the adjustment.
1. Throttle stop screw

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.
6-22
6
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
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.
6-25
6

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
EAU01297
Troubleshooting chart
EW000125WARNING0
Keep away open flames and do not smoke while checking or working on the fuel system.
6-36
6
Check the fuel level in the
fuel tank.
1. Fuel
2. Compression
3. Ignition
4. BatteryThere is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.The engine does not start. Check the compression.
There is compression.Check the ignition.
Have a Yamaha dealer check
the vehicle.
Wipe off with a dry cloth and correct the spark
plug gaps, or replace the spark plugs.Open the throttle halfway and operate the
electric starter.
Have a Yamaha dealer check
the vehicle.The engine does not start.
Check the battery.
The engine turns over slowly.
Have a Yamaha dealer check
the vehicle.
There is no compres-
sion.
Wet.
Dry
The engine turns over quickly.The battery is good.
Check the battery lead connections, and
charge the battery if necessary.The engine does not start.
Operate the electric
starter.
Remove the spark plugs
and check the electrodes.
Operate the electric
starter.

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

INDEX
Periodic maintenance
and minor repair ..................................6-1
Pre-operation check list ..........................4-1
Pre-operation checks..............................4-1
R
Rear wheel
Installing ............................................6-34
Removing ..........................................6-33
S
Safety information ..................................1-1
Seat ......................................................3-13
Self-diagnosis device..............................3-6
Shift pedal ............................................3-10
Adjusting the pedal position ..............6-21
Shifting ....................................................5-3
Shock absorber assembly
adjusting ............................................3-15
Sidestand ..............................................3-16
Sidestand, checking
and lubricating ....................................6-24
Spark plugs, checking ............................6-5
Specifications..........................................8-1
Conversion table ..................................8-5
Speedometer unit ..................................3-3
Starter (choke) lever ............................3-12
Starting a cold engine ............................5-1
Starting a warm engine ..........................5-3
Start switch ............................................3-9
Steering, checking ................................6-25
Steering lock ..........................................3-1Storage ..................................................7-4
Storage compartment ..........................3-14
T
Tachometer ............................................3-6
Tail/brake light bulb, replacing ..............6-31
Throttle cable free play, adjusting ........6-13
Throttle grip and cable, checking and
lubricating ..........................................6-22
Tires ......................................................6-14
Air pressure ........................................6-14
Tool kit ....................................................6-1
Troubleshooting ....................................6-35
Troubleshooting chart ..........................6-36
Turn signal indicator light........................3-2
Turn signal light bulb, replacing............6-31
Turn signal switch ..................................3-8
V
Valve clearance, adjusting ....................6-13
Vehicle identification number ..................9-1
W
Wheel bearings, checking ....................6-25
Wheels, cast ........................................6-16