INSTRUMENT AND CONTROL FUNCTIONS
3-9
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. _
EAU04284
ECA00104
CAUTION:_ Use only unleaded gasoline. The
use of leaded gasoline will cause se-
vere damage to internal engine
parts, such as the valves and piston
rings, as well as to the exhaust sys-
tem. _
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:
21 L
Reserve amount:
4.5 L
U5WME0.book Page 9 Monday, July 29, 2002 10:25 AM
SPECIFICATIONS
8-2
8
Air filterDry element
Fuel
Type REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity 21 L
Fuel reserve amount 4.5 L
Carburetor
Manufacturer MIKUNI
Model × quantity BSR37 × 4
Spark plug
Manufacturer/model NGK / DPR8EA-9 or
DENSO / X24EPR-U9
Gap 0.8–0.9 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction system Spur gear
Primary reduction ratio 1.750
Secondary reduction system Chain drive
Secondary reduction ratio 2.167
Number of drive chain
sprocket teeth (front/rear) 18/39
Transmission type Constant-mesh 5-speed
Operation Left footGear ratio
1st 2.857
2nd 2.000
3rd 1.571
4th 1.292
5th 1.115
Chassis
Frame type Double cradle
Caster angle 25.5 °
Trail 100 mm
Tires
Front
Type Tubeless tire
Size 120/70 ZR17 (58W)
120/70 ZR17 M/C (58W)
Manufacturer/model Dunlop / D220F ST M
Michelin / MACADAM90X E
Rear
Type Tubeless tire
Size 180/55 ZR17 (73W)
180/55 ZR17 M/C (73W)
Manufacturer/model Dunlop / D220 ST M
Michelin / MACADAM90X E
U5WME0.book Page 2 Monday, July 29, 2002 10:25 AM
