Yamaha YZ426F 2001 Manuel D'atelier Du Proprietaire page 608

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EC72N000
Drive and driven sprockets setting parts
* For EUROPE
EC721002
Tire pressure
Tire pressure should be adjust to suit the road
surface condition of the circuit.
G
G
7 - 11
SETTING
Part name Size
Drive sprocket 1
(STD) 14T
Drive sprocket 2 47T
*(STD) 48T
(STD) 49T
50T
51T
52T
Standard tire pressure:
100 kPa (1.0 kgf/cm
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.
Extent of adjustment:
60 ~ 80 kPa
(0.6 ~ 0.8 kgf/cm
Under a stony or hard road condition, the tire
pressure should be higher to prevent a flat
tire.
Extent of adjustment:
100 ~ 120 kPa
(1.0 ~ 1.2 kgf/cm
T U N
Part number
9383E-14215
5ET-25447-00
5NY-25448-00
5NY-25449-00
5NY-25450-00
5NY-25451-00
5NY-25452-00
2
, 15 psi)
2
, 9.0 ~ 12 psi)
2
, 15 ~ 18 psi)