Checking The Crankcase; Assembling The Crankcase - Yamaha YFM250RX 2008 Service Manual

CRANKCASE

CHECKING THE CRANKCASE

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

ASSEMBLING THE CRANKCASE

1. Apply:
• Yamaha bond
®
No.1215 )
(onto the crankcase mating surfaces)
Yamaha bond No.1215
(Three Bond No.1215
90890-85505
NOTE: NOTE:
Do not allow any sealant to come into contact
with the oil gallery.
2. Install:
• Dowel pins
3. Install:
• Right crankcase
(onto the left crankcase)
NOTE: NOTE:
Tap lightly on the right crankcase with a soft-
face hammer.
4-70
ENG
No.1215 (Three Bond
®
)