Yamaha RS90K Manuel D'atelier page 540

7
1 1
4
1 1
5
1
1
5
1
1
4
2
4
3
c
6
5
4
4
5
2
5
2
5-61
CRANKCASE
• Install the crankshaft journal lower bearings 1
into the lower crankcase and assemble the
crankcase halves.
NOTE:
• Align the projections a of the crankshaft journal
lower bearings with the notches b in the crank-
case.
• Do not move the crankshaft until the clearance
measurement has been completed.
• Tighten the bolts in the order of the embossed
numbers on the crankcase.
Crankcase bolt:
Bolt 1:
1st: 15 Nm (1.5 m · kg, 11 ft · lb)
2nd: 15 Nm (1.5 m · kg, 11 ft · lb)
Final: Specified angle 65 ~ 70°
Bolt 2, 3:
24 Nm (2.4 m · kg, 17 ft · lb)
Bolt 4 ~ 7:
12 Nm (1.2 m · kg, 8.7 ft · lb)
M9 × 105 mm bolts: 1
M8 × 70 mm bolts: 2
M8 × 55 mm bolt: 3
M6 × 55 mm bolts: 4
M6 × 80 mm bolts: 5
M6 × 80 mm bolt: 6 (with LOCTITE
M6 × 52 mm bolt: 7
NOTE:
Lubricate the crankcase bolt threads with engine
oil.
• Remove the lower crankcase and the crank-
shaft journal lower bearings.
• Measure the compressed Plastigauge
on each crankshaft journal.
If the clearance is out of specification, select
replacement crankshaft journal bearings.
ENG
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width c