INSTRUMENT AND CONTROL FUNCTIONS
3-10
3
EAU03753
Fuel Make sure that there is sufficient fuel in
the tank. Fill the fuel tank to the bottom
of the filler tube as shown.
EW000130
WARNING
_
Do not overfill the fuel tank, oth-
erwise it may overflow when the
fuel warms up and expands.
Avoid spilling fuel on the hot
engine.
_
EAU00185
CAUTION:@ Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted surfac-
es or plastic parts.@
EAU04202
ECA00102
CAUTION:_ Use only unleaded gasoline. The
use of leaded gasoline will cause se-
vere damage to the engine internal
parts such as valves, piston rings,
exhaust system, etc. _
Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
91 or higher. If knocking (or pinging)
occurs, use a gasoline of a different
brand or premium unleaded fuel. Use
of unleaded fuel will extend spark plug
life and reduce maintenance costs.
1. Fuel tank filler tube
2. Fuel level
Recommended fuel:
REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity:
Total amount:
17.0 L
Reserve amount:
3.5 L
E_4br.book Page 10 Wednesday, July 25, 2001 1:40 PM
SPECIFICATIONS
8-2
8
Air filterDry type element
Fuel
Type REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity 17.0 L
Reserve amount 3.5 L
Carburetor
Manufacturer MIKUNI
Model × quantity BDS28 × 4
Spark plug
Model/Manufacturer CR8E / NGK
U24ESR-N / DENSO
Gap 0.7–0.8 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction system Spur gear
Primary reduction ratio 2.225
Secondary reduction system Chain drive
Secondary reduction ratio 3.000 (except for CH, A)
2.875 (for CH, A)
Number of drive chain
sprocket teeth (rear/front) 48/16 (except for CH, A)
46/16 (for CH, A)
Transmission type Constant mesh 6-speedOperation Left foot
Gear ratio
1st 2.733
2nd 1.778
3rd 1.333
4th 1.074
5th 0.913
6th 0.821
Chassis
Frame type Double cradle
Caster angle 25°
Trail 97 mm
Tire
Front
Type Tubeless tire
Size 110/80-17 57H
110/80-17 M/C 57H
Manufacturer/model MICHELIN / MACADAM 50
DUNLOP / D103FA
Rear
Type Tubeless tire
Size 130/70-18 63H
130/70-18 M/C 63H
Manufacturer/model MICHELIN / MACADAM 50
DUNLOP / D103A
E_4br.book Page 2 Wednesday, July 25, 2001 1:40 PM
