2004 YAMAHA BT1100 transmission

INSTRUMENT AND CONTROL FUNCTIONS
220 200 180 160 140 120
100
80
60
40
20
km/h345
6
7
2
1
0
N
34 512EAU01590
F(Parking)
The steering is locked, and the taillight and
auxiliary light are on, but all other electrical
systems are off. The key can be removed.
The steering must be locked before the
key can be turned to “
F”.
ECA00043
Do not use the parking position for an
extended length of time, otherwise the
battery may discharge.
CAUTION:
EAU03034
Indicator and warning lights
EAUB0001
Oil level warning light “v”
This warning light comes on when the en-
gine oil level is low.
The electrical circuit of the warning light
can be checked according to the following
procedure.
1. Turn the key to “
I” (ON). The warn-
ing light should come on for a few
seconds.
1. Oil level warning light “v”
2. Turn signal indicator light “y
y”
3. Neutral indicator light “N”
4. High beam indicator light “
1”
5. Fuel level warning light “K”
2. If the warning light does not come on,
have a Yamaha dealer check the
electrical circuit.
NOTE:
Even if the oil level is sufficient, the warn-
ing light may flicker when riding on a slope
or during sudden acceleration or decelera-
tion, but this is not a malfunction.
NOTE:
This model is equipped with a self-diagno-
sis device for the oil level warning light cir-
cuit. (See page 3-6 for an explanation of
the self-diagnosis device).
EAU00057
Turn signal indicator light “y
y”
This indicator light flashes when the turn
signal switch is pushed to the left or right.
EAU00061
Neutral indicator light “N”
This indicator light comes on when the
transmission is in the neutral position.
3-2
3
EAU00027

INSTRUMENT AND CONTROL FUNCTIONS
1
1
2
1
23
4
3
1
EAU00157
Shift pedal
The shift pedal is located on the left side of
the engine and is used in combination with
the clutch lever when shifting the gears of
the 5-speed constant-mesh transmission
equipped on this motorcycle.
EAU00161
Brake lever
The brake lever is located at the right han-
dlebar grip. To apply the front brake, pull
the lever toward the handlebar grip.
The brake lever is equipped with a position
adjusting dial. To adjust the distance be-
tween the brake lever and the handlebar
grip, turn the adjusting dial while holding
the lever pushed away from the handlebar
grip. Make sure that the appropriate set-
ting on the adjusting dial is aligned with the
arrow mark on the brake lever.
EAU00162
Brake pedal
The brake pedal is on the right side of the
motorcycle. To apply the rear brake, press
down on the brake pedal.
3-10
3
1. Shift pedal 1. Brake lever
2. Position adjusting dial
3. Arrow mark1. Brake pedal
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

INSTRUMENT AND CONTROL FUNCTIONSEAU00027
3-18
3
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is set to “
I”.
3. Turn the key to “
I” (ON).
4. Shift the transmission into the neutral position.
5. Push the start switch.
Does the engine start?
With the engine still running:
6. Move the sidestand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the sidestand down.
Does the engine stall?
The neutral switch may be defective.
The motorcycle should not be riddenuntil checked by a
Yamaha dealer.
The sidestand switch may be defective.
The motorcycle should not be riddenuntil checked by a
Yamaha dealer.
The clutch switch may be defective.
The motorcycle should not be riddenuntil checked by a
Yamaha dealer.
After the engine has stalled:
10. Move the sidestand up.
11. Keep the clutch lever pulled.
12. Push the start switch.
Does the engine start?
The system is OK. The motorcycle can be ridden.
NOTE:
This check is most reliable if performed with a warmed-up
engine.
NO YES
NO YES
NO YES

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

OPERATION AND IMPORTANT RIDING POINTS
1
5
4
3
2
N
1
EAU01258
Starting a warm engine
Follow the same procedure as for starting
a cold engine with the exception that the
starter (choke) is not required when the
engine is warm.
EAU00423
Shifting
Shifting gears lets you control the amount
of engine power available for starting off,
accelerating, climbing hills, etc.
The gear positions are shown in the illus-
tration.
NOTE:
To shift the transmission into the neutral
position, press the shift pedal down
repeatedly until it reaches the end of its
travel, and then slightly raise it.
EC000048
•Even with the transmission in the
neutral position, do not coast for
long periods of time with the
engine off, and do not tow the
motorcycle for long distances. The
transmission is properly lubricat-
ed only when the engine is run-
ning. Inadequate lubrication may
damage the transmission.
•Always use the clutch while
changing gears to avoid damaging
the engine, transmission, and dri-
ve train, which are not designed to
withstand the shock of forced
shifting.
CAUTION:
5-3
5
1. Shift pedal
N. Neutral position
EAU00372

SPECIFICATIONSEAU01038
8-2
8
Final gear oil
Type Hypoid gear oil SAE 80
(API GL4) or multigrade hypoid
gear oil SAE 80W-90
Quantity 0.2 L
Air filterDry type element
Fuel
Type Regular unleaded gasoline
Fuel tank capacity 20 L
Fuel reserve amount 5.8 L
Carburetor
Manufacturer MIKUNI
Model x quantity BSR37 x 2
Spark plug
Manufacturer/model NGK / BPR7ES or
DENSO / W22EPR-U
Gap 0.7–0.8 mm
Clutch type Wet, multiple-disc
Transmission
Primary reduction system Spur gear
Primary reduction
ratio 1.660
Secondary reduction
system Shaft drive
Secondary reduction
ratio 2.875
Transmission type Constant mesh 5-speed
Operation Left footGear ratio 1st2,353
2nd1,667
3rd1,286
4th1,032
5th0,853
Chassis
Frame type Twin tube Backbone
Caster angle 25°
Trail 106 mm
Tires
Front
Type Tubeless
Size 120/70-ZR17 (58W)
Manufacturer/ Dunlop / D205F TL
model Metzeler / MEZ3F TL
Rear
Type Tubeless
Size 170/60-ZR17 (72W)
Manufacturer/ Dunlop / D205 TL
model Metzeler / MEZ3 TL
Maximum load* 200 kg