Yamaha YZ450F, Owner'S Service Manual

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T U N
SETTING
EC72N000
Drive and driven sprockets setting parts
Part name Size Part number
Drive sprocket
1
(STD) 13T 9383E-13233
Driven sprocket
2
(STD)
47T
48T
49T
50T
51T
52T 1C3-25447-00
1C3-25448-00
1C3-25449-00
1C3-25450-00
1C3-25451-00
1C3-25452-00
EC721002
Tire pressure
Tire pressure should be adjust to suit the road
surface condition of the circuit.
• Under a rainy, muddy, sandy, or slippery
condition, the tire pressure should be lower
for a larger area of contact with the road sur-
face.
• Under a stony or hard road condition, the tire
pressure should be higher to prevent a flat
tire.
Standard tire pressure:
100 kPa (1.0 kgf/cm
2
, 15 psi)
Extent of adjustment:
60 ~ 80 kPa
(0.6 ~ 0.8 kgf/cm
2
, 9.0 ~ 12 psi)
Extent of adjustment:
100 ~ 120 kPa
(1.0 ~ 1.2 kgf/cm
2
, 15 ~ 18 psi)