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ENG
CRANKCASE
NOTE:
NOTE:
EAS00399
CHECKING THE CRANKCASE
1. Throughly wash the crankcase halves in a
mild solvent.
2. Thoroughly clean all the gasket surfaces and
crankcase mating surfaces.
3. Check:
Scrankcase
Cracks/damage ! Replace.
Soil delivery passages
Obstruction ! Blow out with compressed air.
EAS00412
ASSEMBLING THE CRANKCASE
1. Lubricate:
Scrankshaft journal bearings
(with the recommended lubricant)
Recommended lubricant
Engine oil
2. Apply:
Ssealant
(onto the crankcase mating surfaces)
Yamaha bond No. 1215
90890-85505
Do not allow any sealant to come into contact
with the oil gallery or crankshaft journal bear-
ings. Do not apply sealant to within 2 X 3 mm of
the crankshaft journal bearings.
3. Install:
Sdowel pin
4. Install:
Scrankshaft journal lower bearings
(into the lower crankcase)
SAlign the projections
a
on the crankshaft jour-
nal lower bearings with the notches
b
in the
crankcase.
SInstall each crankshaft journal lower bearing in
its original place.