Disassembling The Crankcase; Removing The Crankshaft Journal Bearings - Yamaha 2004 YP400 Service Manual

2
2
1
CRANKSHAFT
EAS00385

DISASSEMBLING THE CRANKCASE

1. Remove:
• crankcase bolts
NOTE:
_
Loosen each bolt 1/4 of a turn at a time, in
stages and in a crisscross pattern. After all of
the bolts are fully loosened, remove them.
2. Remove:
• right crankcase
CAUTION:
_
Tap on one side of the crankcase with a
soft-face hammer. Tap only on reinforced
portions of the crankcase, not on the
crankcase mating surfaces. Work slowly
and carefully and make sure the crankcase
halves separate evenly.
EAS00387
REMOVING THE CRANKSHAFT JOURNAL
BEARINGS
1. Remove:
1
• crankshaft journal bearings 1
NOTE:
Remove the journal bearings with the plane
bearing installer/remover 2.
Plane bearing installer/remover
NOTE:
Identify the position of each crankshaft journal
bearing so that they can be reinstalled in their
original places.
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ENG
90890-04146