Yamaha YZFR6X(C) 2008 Service Manual page 265

5. Install:
• Lower crankcase "1"
(onto the upper crankcase "2")
ECA13980
CAUTION:
Before tightening the crankcase bolts,
make sure the transmission gears shift cor-
rectly when the shift drum assembly is
turned by hand.
6. Install:
• Crankcase bolts
NOTE:
• Lubricate the bolts "1"–"10" thread part and
washers with engine oil.
• Lubricate the bolts "11"–"29" thread part and
mating surfaces with engine oil.
• Finger tighten the crankcase bolts.
• M8 × 115 mm bolts: "8", "9"
• M8 × 85 mm bolts: "1"–"7", "10"
• M8 × 65 mm bolts: "11", "12"
• M6 × 80 mm bolt: "28"
• M6 × 65 mm shoulder bolts: "13", "14"
• M6 × 65 mm bolts: "16", "20", "21"
• M6 × 55 mm bolts: "15", "22"–"27"
• M6 × 45 mm bolts: "17"–"19"
• M6 × 30 mm bolt: "29"
24 23 22
13
25
26
7 5
4
27 10
28
16
18
29 17
7. Tighten:
• Crankcase bolts "1"–"10"
1
2
21
9
1 3
6 8
2
20
15 14
12
11
19
Crankcase bolt (M8 × 115 mm,
M8 × 85 mm)
1st: 20 Nm (2.0 m·kg, 14 ft·lb)
*2nd: 12 Nm (1.2 m·kg, 8.9
ft·lb)
3rd: 45°–55°
4th: 70°–80°
*Loosen all bolts following the tightening
order and then tighten to specification
torque.
NOTE:
• Lubricate the bolt threads and the bearing
surfaces with engine oil.
• Tighten the bolts in the tightening sequence
cast on the crankcase.
7
10
8. Tighten:
• Crankcase bolts "11"–"29"
Crankcase bolt (M8 × 65 mm)
24 Nm (2.4 m·kg, 17 ft·lb)
Crankcase bolt (M6)
10 Nm (1.0 m·kg, 7.2 ft·lb)
NOTE:
• Lubricate the bolt threads and the bearing
surfaces with engine oil.
• Tighten the bolts in the tightening sequence
cast on the crankcase.
13
26
27
29
5-56
CRANKCASE
3 9
1
5
6 8
4 2
24 23 22
25
21
20
15
14
12
28
16
11
19
18
17