Checking The Bearings; Checking The Crankcase; Assembling The Crankcase - Yamaha YFM7FGPW Service Manual

a
2
CRANKCASE
EBS00339

CHECKING THE BEARINGS

1. Check:
• bearings
Clean and lubricate, then rotate the inner
race with a finger.
Roughness → Replace.
EBS00338

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
Cracks/damage → Replace.
• oil delivery passages
Clogged → Blow out with compressed air.
EBS00342

ASSEMBLING THE CRANKCASE

1
1. Apply:
• sealant 1
2
(to the mating surfaces of both case halves)
Yamaha bond No. 1215
90890-85505
(Three bond No.1215
NOTE:
Apply two coats of sealant to the area a
shown in the illustration.
2. Install:
• dowel pins 2
4 - 73
ENG
®
)