Checking The Crankcase; Checking The Bearings; Assembling The Crankcase - Yamaha YFM45FAR Service Manual

CRANKCASE

CHECKING THE CRANKCASE

1.Thoroughly wash the case halves in a mild
solvent.
2.Clean all the gasket mating surfaces and
crankcase mating surfaces thoroughly.
3.Check:
Crankcase
G
Cracks/damage → Replace.
Oil delivery passages
G
Clogged → Blow out with compressed air.

CHECKING THE BEARINGS

1.Check:
Bearing
G
Clean and lubricate, then rotate the inner
race with a finger.
Roughness → Replace.

ASSEMBLING THE CRANKCASE

1.Apply:
Sealant (Quick Gasket
G
(to the mating surfaces of both case halves)
Sealant (Quick Gasket
P/N. ACC-11001-05-01
Yamaha bond No. 1215:
P/N. 90890-85505
2.Install:
Dowel pin 2
G
3.Fit the left crankcase onto the right case. Tap
lightly on the case with a soft hammer.
CAUTION:
Before installing
crankcase holding bolts, be sure to check
whether the transmission is functioning
properly by manually rotating the shift cam
in both directions.
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ENG
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and torquing the