Page 25 of 110

INSTRUMENT AND CONTROL FUNCTIONS
3-10
3
EAU00186
CAUTION:_
Immediately wipe off spilled fuel
with a clean, dry, soft cloth,
since fuel may deteriorate paint-
ed surfaces or plastic parts.
For Germany only: Whenever
replacement is necessary, use a
fuel tank cap of the same spe-
cial design as the original.
_
EAU04284ECA00104
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.
EAU00196
Fuel tank breather hose
(for Germany only) Before operating the motorcycle:
Check the fuel tank breather hose
connection.
Check the fuel tank breather hose
for cracks or damage, and replace
it if damaged.
Make sure that the end of the fuel
tank breather hose is not blocked
and clean it if necessary. Recommended fuel:
REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity:
Total amount:
20 L
Reserve amount:
3.5 L
1. Fuel tank breather hose
U5PSE0.book Page 10 Thursday, December 13, 2001 4:29 PM
Page 60 of 110

PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
613. Install the coolant drain bolts, and
then tighten them to the specified
torque.
NOTE:_ Check the washers for damage and re-
place them if necessary. _14. Pour the recommended coolant
into the radiator until it is full.
EC000080
CAUTION:_
If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.
If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the engine may not be
sufficiently cooled and the cool-
ing system will not be protected
against frost and corrosion.
If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible,
otherwise the effectiveness of
the coolant will be reduced.
_15. Install the radiator cap, start the
engine, let it idle for several min-
utes, and then turn it off.
16. Remove the radiator cap to check
the coolant level in the radiator. If
necessary, add sufficient coolant
until it reaches the top of the radia-
tor, and then install the radiator
cap and the cap retaining bolt.
17. Check the coolant level in the res-
ervoir. If necessary, remove the
coolant reservoir cap, add coolant
to the maximum level mark, and
then install the cap.
18. Install the fuel tank. Tightening torque:
Coolant drain bolt:
7 Nm (0.7 m·kgf)
Antifreeze/water mixture ratio:
1:1
Recommended antifreeze:
High-quality ethylene glycol
antifreeze containing corrosion
inhibitors for aluminum engines
Coolant quantity:
Total amount:
1.7 L
Coolant reservoir capacity:
0.3 L
U5PSE0.book Page 15 Thursday, December 13, 2001 4:29 PM
Page 99 of 110

SPECIFICATIONS
8-2
8
Cooling system capacity
(total amount)
1.7 L
Air filterWet type element
Fuel
Type REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity 20 L
Fuel reserve amount 3.5 L
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 1.718
Secondary reduction system Chain drive
Secondary reduction ratio 2.625
Number of drive chain
sprocket teeth (front/rear) 16/42
Transmission type Constant-mesh 6-speedOperation Left foot
Gear ratio
1st 2.750
2nd 1.947
3rd 1.545
4th 1.240
5th 1.040
6th 0.923
Chassis
Frame type Diamond
Caster angle 25.5°
Trail 114 mm
Tires
Front
Type Tubeless tire
Size 120/70 ZR18 (59W)
120/70 ZR18 M/C (59W)
Manufacturer/model Dunlop / D220FSTJ
Metzeler / MEZ4J
Rear
Type Tubeless tire
Size 160/60 ZR17 (69W)
160/60 ZR17 M/C (69W)
Manufacturer/model Dunlop / D220STJ
Metzeler / MEZ4J
U5PSE0.book Page 2 Thursday, December 13, 2001 4:29 PM