Yamaha 2008 WR450F, Owner'S Service Manual

Page: 154 / 220

5-60
CRANKCASE AND CRANKSHAFT
5. Install:
•
Dowel pin "1"
• O-ring "2"
•
Right crankcase
To left crankcase.
•
Apply the lithium soap base grease
on the O-ring.
•
Fit the right crankcase onto the left
crankcase. Tap lightly on the case
with soft hammer.
• When installing the crankcase, the
connecting rod should be posi-
tioned at TDC (top dead center).
6. Tighten:
•
Hose guide "1"
• Clutch cable holder "2"
•
Bolt (clutch cable holder)
• Bolt (crankcase)
Tighten the crankcase tightening
bolts in stage, using a crisscross pat-
tern.
7. Install:
• Timing chain
•
Timing chain guide (intake side)
• Bolt (timing chain guide)
8. Remove:
• Sealant
Forced out on the cylinder mating
surface.
9. Apply:
•
Engine oil
To the crank pin, bearing and oil
delivery hole.
10. Check:
•
Crankshaft and transmission op-
eration.
Unsmooth operation
→
Repair.
Bolt (clutch cable hold-
er):
10 Nm (1.0 m•kg, 7.2
ft•lb)
Bolt (crankcase):
12 Nm (1.2 m•kg, 8.7
ft•lb)
Bolt (timing chain guide):
10 Nm (1.0 m•kg, 7.2
ft•lb)