Disassembling The Crankcase; Checking The Crankcase; Checking The Oil Pipe 3 - Yamaha VMAX 2009 Service Manual

EAS25550

DISASSEMBLING THE CRANKCASE

1. Remove:
• Crankcase bolts
• Washers
TIP
• Loosen each bolt 1/4 of a turn at a time, in stag-
es and in a crisscross pattern. After all of the
bolts are fully loosened, remove them.
• Loosen the bolts in decreasing numerical order
(refer to the numbers in the illustration).
• The numbers embossed on the crankcase in-
dicate the crankcase tightening sequence.
• M10 × 150 mm bolts: "1"–"8"
• M8 × 90 mm bolts: "9", "10", "13"–"15", "21",
"22", "24", "26", "31", "32", "35", "38"
• M8 × 110 mm bolts: "11", "12", "39"
• M8 × 65 mm bolts: "16"–"20", "23", "25", "27",
"33", "34", "36", "37"
• M6 × 65 mm bolts: "28"–"30", "40"–"42"
A
28
20 18
15
10
14
3
7
8
4
25
30
29
27
19
16 17
13
9 11
1
5
2 6
12
21
23
26
24
22
B
35 40 36
31
32
33
A. Lower crankcase
B. Upper crankcase
2. Remove:
• Lower crankcase
ECA13900
NOTICE
Tap on one side of the crankcase with a soft-
face hammer. Tap only on reinforced por-
tions of the crankcase, not on the crankcase
mating surfaces. Work slowly and carefully
and make sure the crankcase halves sepa-
rate evenly.
EAS25580

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.
EAS2S31039

CHECKING THE OIL PIPE 3

1. Check:
• Oil pipe 3
Damage → Replace.
Obstruction → Wash and blow out with com-
pressed air.
5-76
CRANKCASE
38
42
41
37
39
34