Installing The Valve Lifter And Camshaft; Checking The Crankcase Cover; Installing The Crankcase Cover - Yamaha MX250 Service Manual

PISTON, CAMSHAFT, CRANKCASE, AND CRANKSHAFT
1
2
3
4
5
6
7
1
8
9
10
1
8
4
6

INSTALLING THE VALVE LIFTER AND CAMSHAFT

1.
2
1
2.
a
b
NOTICE
Be sure to align the camshaft "1" gear mark "b" with
the crankshaft gear mark "a".

CHECKING THE CRANKCASE COVER

1.

INSTALLING THE CRANKCASE COVER

1.
5
TIP
3
Tighten the bolts to the specified torque in two steps and in
order from "1" to "8".
7
2
8
Install:
• Intake valve lifter "1"
• Exhaust valve lifter "2"
Install:
• Camshaft "1"
Check:
• Crankcase cover
Damage  Replace.
• Bearing
Noise/wear/rotational failure  Replace.
Install:
• Crankcase cover
• Crankcase cover bolts "1" to "8"
Crankcase cover bolt:
1st: 12 N·m (1.2 kgf·m, 8.9 lb·ft)
2nd: 30 N·m (3.0 kgf·m, 22 lb·ft)
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