Yamaha YZ250FN Fahrer- Und Wartungshandbuch Seite 630

SETTING
EC72N000
Drive and driven sprockets setting parts
Part name
Drive sprocket 1
(STD)
Rear wheel
sprocket 2 (STD)
EC721002
Tire pressure
Tire pressure should be adjust to suit the road
surface condition of the circuit.
Standard tire pressure:
100 kPa (1.0 kg/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 kg/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 kg/cm
7 - 12
T U N
Size Part number
13T 9383B-13218
47T 5ET-25447-00
48T 5ET-25448-00
49T 5ET-25449-00
50T 5ET-25450-00
51T 5ET-25451-00
52T 5ET-25452-00
2
, 15 psi)
2
, 9.0 ~ 12 psi)
2
, 15 ~ 18 psi)