Page 20 of 84

INSTRUMENT AND CONTROL FUNCTIONS
3-6
3
EAU13210
Fuel Make sure that there is sufficient fuel in
the tank. Fill the fuel tank to the bottom
of the filler tube as shown.
WARNING
EWA10880
Do not overfill the fuel tank, oth-
erwise it may overflow when the
fuel warms up and expands.
Avoid spilling fuel on the hot en-gine.
CAUTION:
ECA10070
Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted surfac-es or plastic parts.
EAU37880
CAUTION:
ECA11400
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,as well as to the exhaust system.
EAU13431
Catalytic converter This model is equipped with a catalytic
converter in the exhaust system.
WARNING
EWA10860
The exhaust system is hot after op-
eration. Make sure that the exhaust
system has cooled down before do-ing any maintenance work.CAUTION:
ECA10700
The following precautions must be
observed to prevent a fire hazard or
other damages.
Use only unleaded gasoline.
The use of leaded gasoline will
cause unrepairable damage to
the catalytic converter.
Never park the vehicle near pos-
sible fire hazards such as grass
or other materials that easily
burn.
Do not allow the engine to idletoo long.
1. Fuel tank filler tube
2. Fuel level
Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
4.0 L (1.06 US gal) (0.88 Imp.gal)
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Page 51 of 84

PERIODIC MAINTENANCE AND MINOR REPAIR
6-18
6
WARNING
EWA10560
It is dangerous to ride with a
worn-out tire. When a tire tread
begins to show crosswise lines,
have a Yamaha dealer replace
the tire immediately.
The replacement of all wheel-
and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the necessary professional knowl-
edge and experience.
It is not recommended to patch
a punctured tube. If unavoid-
able, however, patch the tube very carefully and replace it as
soon as possible with a high-
quality product.
EAU21940
Spoke wheels To maximize the performance, durabil-
ity, and safe operation of your motor-
cycle, note the following points
regarding the specified wheels.
The wheel rims should be checked
for cracks, bends or warpage, and
the spokes for looseness or dam-
age before each ride. If any dam-
age is found, have a Yamaha
dealer replace the wheel. Do not
attempt even the smallest repair to
the wheel. A deformed or cracked
wheel must be replaced.
The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced. An
unbalanced wheel can result in
poor performance, adverse han-
dling characteristics, and a short-
ened tire life.
Ride at moderate speeds after
changing a tire since the tire sur-
face must first be
“broken in ” for it
to develop its optimal characteris-
tics.
Front tire: Size:
70/90-17M/C 38
P
Manufacturer/model:IRC/NF63B
DUNLOP/ D 102 FA
Rear tire:
Size:80/90-17M/C 44P
Manufacturer/model:
IRC/NR78Y
DUNLOP/ D 102 A
U5YPE0E0.book Page 18 Wednesday, February 23, 2005 4:22 PM
Page 75 of 84

SPECIFICATIONS
8-1
8
Dimensions:Overall length:1945 mm (76.6 in)
Overall width:
705 mm (27.8 in)
Overall height: 1065 mm (41.9 in)
Seat height: 770 mm (30.3 in)
Wheelbase:
1245 mm (49.0 in)
Ground clearance: 140 mm (5.51 in)
Minimum turning radius: 1900 mm (74.8 in)Weight:With oil and fuel:109,0 kg (240 lb)Engine:Engine type:Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement: 134.4 cm ³ (8.20 cu.in)
Bore × stroke:
54.0 × 58.7 mm (2.13 × 2.31 in)
Compression ratio:
10.90 :1
Starting system: Electric starter and kickstarter Lubrication system:
Wet sump
Engine oil:Type:
SAE20W40 or SAE20W50
Recommended engine oil grade: API service SF, SG type or higher
JASO MA
Engine oil quantity: Without oil filter element replacement:
0.80 L (0.85 US qt) (0.70 Imp.qt)
With oil filter element replacement: 0.90 L (0.95 US qt) (0.79 Imp.qt)Cooling system:Coolant reservoir capacity (maximum
level) YAMAHA GENUINE COOLANT: 0.28 L (0.30 US qt) (0.25 Imp.qt)
Radiator capacity (including all routes):
0.62 L (0.66 US qt) (0.55 Imp.qt)Air filter:Air filter element:Dry elementFuel:Recommended fuel:Regular unleaded gasoline only
Fuel tank capacity: 4.0 L (1.06 US gal) (0.88 Imp.gal)Carburetor:Manufacturer:MIKUNI
Type × quantity:
VM22 x 1
Spark plug (s):Manufacturer/model: NGK CPR8EA-9/ DENSO U24EPR-9
Spark plug gap:
0.8 –0.9 mm (0.031 –0.035 in)Clutch:Clutch type:
Wet, multiple-disc and centrifugal
automaticTransmission:Primary reduction system:
Spur gear
Primary reduction ratio: 69/24 (2.875)
Secondary reduction system: Chain drive
Secondary reduction ratio:
39/15 (2.600)
Transmission type: Constant mesh 4-speed
Operation: Left foot operation
Gear ratio:
1st:34/12 (2.833)
2nd:
30/16 (1.875)
3rd: 23/17 (1.353)
4th: 23/22 (1.045)Chassis:Frame type: Diamond
U5YPE0E0.book Page 1 Wednesday, February 23, 2005 4:22 PM
Page 76 of 84

SPECIFICATIONS
8-2
8
Caster angle:25.50 °
Trail: 75.0 mm (2.95 in)Front tire:Type:
With tube
Size: 70/90-17M/C 38P
Manufacturer/model:
IRC/NF63B
Manufacturer/model: DUNLOP/D 102FARear tire:Type:
With tube
Size: 80/90-17M/C 44P
Manufacturer/model: IRC/NR78Y
Manufacturer/model:
DUNLOP/D102ALoading:Maximum load:110 kg (243 lb)
(Total weight of rider, passenger, cargo and
accessories)Tire air pressure (measured on cold
tires):Loading condition:
0–90 kg (0 –198 lb)
Front: 200 kPa (29 psi) (2.00 kgf/cm ²) Rear:
225 kPa (33 psi) (2.25 kgf/cm ²)
Loading condition: 90–110 kg (198 –243 lb)
Front:
200 kPa (29 psi) (2.00 kgf/cm ²)
Rear: 225 kPa (33 psi) (2.25 kgf/cm ²)
Front wheel:Wheel type:
Spoke wheel
Rim size: 17x1.20Rear wheel:Wheel type:
Spoke wheel
Rim size: 17x1.60Front brake:Type:
Single disc brake
Operation: Right hand operation
Recommended fluid: DOT 3 or 4Rear brake:Type:Drum brake
Operation: Right foot operationFront suspension:Type:Telescopic fork Spring/shock absorber type:
Coil spring/oil damper
Wheel travel: 100.0 mm (3.94 in)
Rear suspension:Type:Swingarm (monocross)
Spring/shock absorber type: Coil spring/oil damper
Wheel travel:
90.0 mm (3.54 in)Electrical system:Ignition system:DC. CDI
Charging system:
AC magnetoBattery:Model:GM5Z-3B/YB 5L-B
Voltage, capacity:
12 V, 5.0 AhHeadlight:Bulb type:Krypton bulbBulb voltage, wattage × quantity:Headlight:
12 V, 32 W/32.0 W × 1
Tail/brake light: 12 V, 5.0 W/21.0 W × 1
Front turn signal light:
12 V, 10.0 W × 2
Rear turn signal light: 12 V, 10.0 W × 2
U5YPE0E0.book Page 2 Wednesday, February 23, 2005 4:22 PM