Yamaha RS90K Manuel D'atelier page 526

CRANKCASE
REMOVAL
1. Remove:
• Crankcase bolts
NOTE:
• Place the engine upside down.
• Loosen the bolts in decreasing numerical order of
the embossed numbers on the crankcase.
• Loosen each bolt 1/4 of a turn at a time. After all
of the bolts are fully loosened, remove them.
2. Remove:
• Lower 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 that the crankcase halves separate evenly.
3. Remove:
• Dowel pins
• Crankshaft journal bearing
NOTE:
Identify the position of each crankshaft journal
lower bearing so that it can be reinstalled in its orig-
inal place.
4. Remove:
• Connecting rod cap 1
• Big end bearing
1
NOTE:
Identify the position of each big end bearing so that
it can be reinstalled in its original place.
5-54
ENG