tire size YAMAHA WR 250F 2001 Owners Manual

SPEC

2 - 3
GENERAL SPECIFICATIONS
Tire:
Type With tube
Size (front) 80/100-21 51M (For USA, CDN and ZA)
90/90-21 54R (For EUROPE, AUS and NZ)
Size (rear) 100/100-18 59M (For USA, CDN and ZA)
120/90-18 65R (For EUROPE, AUS and NZ)
Tire pressure (front and rear) 100 kPa (1.0 kg/cm
2

, 15 psi)
Brake:
Front brake type Single disc brake
Operation Right hand operation
Rear brake type Single disc brake
Operation Right foot operation
Suspension:
Front suspension Telescopic fork
Rear suspension Swingarm (link type monocross suspension)
Shock absorber:
Front shock absorber Coil spring/oil damper
Rear shock absorber Coil spring/gas, oil damper
Wheel travel:
Front wheel travel 300 mm (11.8 in)
Rear wheel travel 315 mm (12.4 in)
Electrical:
Ignition system CDI magneto
Headlight type: Quartz bulb (halogen)
Bulb wattage
´
quantity:
Headlight 12 V 60/55 W
´
1
Taillight 12 V 21/5 W
´
1

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TUNSETTING
EC72N000
Drive and driven sprockets setting parts
Part name Size Part number
Drive sprocket 1
(STD) 13T 9383B-13218
Rear wheel
sprocket
2
(STD)48T
50T
52T
54T5GS-25448-50
5GS-25450-50
5GS-25452-50
5PH-25454-50
EC721002
Tire pressure
Tire pressure should be adjust to suit the road
surface condition of the circuit.
lUnder a rainy, muddy, sandy, or slippery
condition, the tire pressure should be lower
for a larger area of contact with the road sur-
face.
lUnder a stony or hard road condition, the tire
pressure should be higher to prevent a flat
tire.
Standard tire pressure:
100 kPa (1.0 kg/cm2, 15 psi)
Extent of adjustment:
60 ~ 80 kPa
(0.6 ~ 0.8 kg/cm
2, 9.0 ~ 12 psi)
Extent of adjustment:
100 ~ 120 kPa
(1.0 ~ 1.2 kg/cm
2, 15 ~ 18 psi)