2002 YAMAHA BT1100 gas type

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.
6-26
6
12
1
2
+
-
1. Screw (x 2)
2. Storage compartment1. Positive battery terminal
2. Negative battery terminal

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

SPECIFICATIONS
8-3
8
EAU01038
Tire air pressure
(measured on cold tires)
Up to 90 kg*
Front 230 kPa; 2.30 kg/cm
2; 2.30 bar
Rear 250 kPa; 2.50 kg/cm
2; 2.50 bar
90 kg–maximum*
Front 250 kPa; 2.50 kg/cm
2; 2.50 bar
Rear 270 kPa; 2.70 kg/cm
2; 2.70 bar
* Total weight of rider, passenger, cargo and accessories
Wheels
Front
Type Cast wheel
Size 17 x MT 3.50
Rear
Type Cast wheel
Size 17 x MT 5.50
Brakes
Front:
Type Dual disc brake
Operation Right hand
Fluid DOT 4Rear:
Type Single disc brake
Operation Right foot
Fluid DOT 4
Suspension
Front: Telescopic fork
Rear: Swingarm
(link suspension)
Spring/shock absorber
Front: Coil spring / oil damper
Rear: Coil spring / gas-oil damper,
spring preload adjustable
Wheel travel
Front: 130 mm
Rear: 113 mm
Electrical system
Ignition system Transistorized coil ignition
(digital)
Charging system
Type A.C. magneto
Standard output 14V, 350W at 5,000 r/min