Yamaha YZ250F(Y) Owner's Service Manual page 122

2. Install:
• Lock washer "1"
• Nut (drive sprocket) "2"
Nut (drive sprocket):
75 Nm (7.5 m•kg, 54
ft•lb)
Tighten the nut while applying the
rear brake.
3. Bend the lock washer tab to lock
the nut.
4. Install:
• Drive chain sprocket guide "1"
• Drive chain sprocket cover "2"
• Screw (drive chain sprocket cov-
er) "3"
Screw (drive chain
sprocket cover):
8 Nm (0.8 m•kg, 5.8
ft•lb)
INSTALLING THE NEUTRAL
SWITCH
1. Install:
• Spring "1"
• Pin "2"
• O-ring "3"
• Neutral switch "4"
• Screw (neutral switch) "5"
Screw (neutral switch):
4 Nm (0.4 m•kg, 2.9
ft•lb)
Apply the lithium soap base grease
on the O-ring.
2. Install:
• Hose guide (cylinder head breath-
er hose) "1"
• Bolt (hose guide) "2"
Bolt (hose guide):
10 Nm (1.0 m•kg, 7.2
ft•lb)
4-52
ENGINE REMOVAL