2002 YAMAHA BT1100 ignition

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

LOCK
POFF
ON PUSH
12
EAU00029
Main switch/steering lock
The main switch/steering lock controls the
ignition and lighting systems, and is used
to lock the steering. The various positions
are described below.
EAU00036
ION
All electrical systems are supplied with
power, and the engine can be started. The
key cannot be removed.
EAU00038
BOFF
All electrical systems are off. The key can
be removed.
EAU00040
DLOCK
The steering is locked, and all electrical
systems are off. The key can be removed.
To lock the steering
1. Turn the handlebars all the way to the
left.
2. Push the key in from the
B(OFF) po-
sition, and then turn it to
D(LOCK)
while still pushing it.
3. Remove the key.
To unlock the steering
Push the key in, and then turn it to
B
(OFF) while still pushing it.
1. Push
2. Turn
EAU00027
3-1
3
INSTRUMENT AND CONTROL FUNCTIONS
EW000016WARNING0
Never turn the key to B(OFF) or D
(LOCK) while the motorcycle is mov-
ing, otherwise the electrical systems
will be switched off, which may result
in loss of control or an accident. Make
sure that the motorcycle is stopped
before turning the key to
B(OFF) orD
(LOCK).
LOCKOFF (Premere)
Bloccare Sbloccare

LOCK
(Premere)OFF

Lock
(push)
Unlock
(push)

INSTRUMENT AND CONTROL FUNCTIONS
2
1
3
1
EAU03890
Engine stop switch “I/B”
Set this switch to “
I” before starting the
engine. Set this switch to “
B” to stop the
engine in case of an emergency, such as
when the motorcycle overturns or when
the throttle cable is stuck.
EAU03898
Light switch “G/E/H”
Set this switch to “
G” to turn on the aux-
iliary light, meter lighting and taillight. Set
the switch to “
E” to turn on the headlight
also. Set the switch to “
H” to turn off all the
lights.
EAU00143
Start switch “J”
Push this switch to crank the engine with
the starter.
EC000005
See page 5-1 for starting instructions
prior to starting the engine.
CAUTION:EAU00152
Clutch lever
The clutch lever is located at the left han-
dlebar grip. To disengage the clutch, pull
the lever toward the handlebar grip. To en-
gage the clutch, release the lever. The
lever should be pulled rapidly and re-
leased slowly for smooth clutch operation.
The clutch lever is equipped with a clutch
switch, which is part of the ignition circuit
cut-off system. (See page 3-18 for an ex-
planation of the ignition circuit cut-off sys-
tem).
3-9
3
1. Engine stop switch “I/B”
2. Light switch “G/E/H”
3. Start switch “J”1. Clutch lever
EAU00027

INSTRUMENT AND CONTROL FUNCTIONS
decrease the spring preload and
thereby soften the suspension, turn
the adjusting nut in direction b.
NOTE:
Use the special wrench included in the
owner’s tool kit to make the adjustment.
The spring preload setting is determined
by measuring distance A, shown in the
illustration. The longer distance A is, the
higher the spring preload; the shorter dis-
tance A is, the lower the spring preload.
With each complete turn of the adjusting
nut, distance A changes by 1.5 mm.3. Tighten the locknut to the specified
torque.• Always have a Yamaha dealer ser-
vice the shock absorber.
EAU00330
Sidestand
The sidestand is located on the left side of
the frame. Raise the sidestand or lower it
with your foot while holding the motorcycle
upright.
NOTE:
The built-in sidestand switch is part of the
ignition circuit cut-off system, which cuts
the ignition in certain situations. (See fur-
ther down for an explanation of the ignition
circuit cut-off system).
3-16
3
Spring preload:
Minimum (soft):
Distance A = 170 mm
Standard:
Distance A = 162 mm
Maximum (hard):
Distance A = 154 mm
Tightening torque:
Locknut:
45 Nm (4.5 m•kg)
EAU00315WARNING0
This shock absorber contains highly
pressurized nitrogen gas. For proper
handling, read and understand the fol-
lowing information before handling the
shock absorber. The manufacturer can-
not be held responsible for property
damage or personal injury that may
result from improper handling.
•Do not tamper with or attempt to
open the gas cylinder.
•Do not subject the shock absorber
to an open flame or other high heat
sources, otherwise it may explode
due to excessive gas pressure.
•Do not deform or damage the gas
cylinder in any way, as this will
result in poor damping perfor-
mance.
EAU00027

INSTRUMENT AND CONTROL FUNCTIONS
EW000044WARNING0
The motorcycle must not be ridden
with the sidestand down, or if the side-
stand cannot be properly moved up (or
does not stay up), otherwise the side-
stand could contact the ground and
distract the operator, resulting in a pos-
sible loss of control.
Yamaha’s ignition circuit cut-off sys-
tem has been designed to assist the
operator in fulfilling the responsibility
of raising the sidestand before starting
off. Therefore, check this system regu-
larly as described below and have a
Yamaha dealer repair it if it does not
function properly.
EAU03720
Ignition circuit cut-off system
The ignition circuit cut-off system (com-
prising the sidestand switch, clutch switch
and neutral switch) has the following func-
tions.
•It prevents starting when the trans-
mission is in gear and the sidestand
is up, but the clutch lever is not
pulled.
•It prevents starting when the trans-
mission is in gear and the clutch lever
is pulled, but the sidestand is still
down.
•It cuts the running engine when the
transmission is in gear and the side-
stand is moved down.Periodically check the operation of the ig-
nition circuit cut-off system according to
the following procedure.
EW000045WARNING0
If a malfunction is noted, have a Yamaha
dealer check the system before riding.
3-17
3
EAU00027

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

OPERATION AND IMPORTANT RIDING POINTS
EAU00373WARNING0
•Become thoroughly familiar with
all operating controls and their
functions before riding. Consult a
Yamaha dealer regarding any con-
trol or function that you do not
thoroughly understand.
•Never start the engine or operate it
in a closed area for any length of
time. Exhaust fumes are poiso-
nous, and inhaling them can cause
loss of consciousness and death
within a short time. Always make
sure that there is adequate ventila-
tion.
•Before starting out, make sure that
the sidestand is up. If the side-
stand is not raised completely, it
could contact the ground and dis-
tract the operator, resulting in a
possible loss of control.
EAU03818
Starting the engine
In order for the ignition circuit cut-off sys-
tem to enable starting, one of the following
conditions must be met:
•The transmission is in the neutral po-
sition.
•The transmission is in gear with the
clutch lever pulled and the sidestand
up.
EW000054WARNING0
•Before starting the engine, check
the function of the ignition circuit
cut-off system according to the
procedure described on page 3-18.
•Never ride with the sidestand
down.
1. Turn the key to “I” (ON) and make
sure that the engine stop switch is set
to “
I”.
EC000035
If the fuel level warning light comes on,
check the fuel level, and, if necessary,
refuel as soon as possible.
2. Shift the transmission into the neutral
position.
When the transmission is in the neu-
tral position, the neutral indicator light
should be on, otherwise have a
Yamaha dealer check the electrical
circuit.
3. Turn the starter (choke) on and com-
pletely close the throttle. (See page
3-12 for starter (choke) operation).
CAUTION:
5-1
5
EAU00372

EAU00462PERIODIC MAINTENANCE AND MINOR REPAIR
128
1
7
9
2
3
546
EAUB0012
Replacing the fuses
The fuse box is located under the seat.
(See page 3-13 for seat removal and in-
stallation procedures). If a fuse is blown,
replace it as follows.
1. Turn the key to “
B” (OFF) and turn
off the electrical circuit in question.
2. Remove the blown fuse, and then in-
stall a new fuse of the specified am-
perage.
1. Screw (x 2)
2. Storage compartment
EC000103
Do not use a fuse of a higher amperage
rating than recommended to avoid
causing extensive damage to the elec-
trical system and possibly a fire.
3. Turn the key to “
I” (ON) and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows again,
have a Yamaha dealer check the
electrical system.
CAUTION:
1. Fuse box cover
2. Main fuse
3. Headlight fuse
4. Signaling system fuse
5. Ignition fuse
6. Backup fuse (odometer)
7. Carburetor heater fuse
8. Spare fuse (x 4)
6-28
6
Specified 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