Yamaha 2008 YZF-R6X, Service Manual

Page: 265 / 434

CRANKCASE
5-56
5. Install:
• Lower crankcase “1”
(onto the upper crankcase “2”)
CAUTION:
ECA13980
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”
7. Tighten:
• Crankcase bolts “1”–“10”
*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.
8. Tighten:
• Crankcase bolts “11”–“29”
NOTE:
• Lubricate the bolt threads and the bearing
surfaces with engine oil.
• Tighten the bolts in the tightening sequence
cast on the crankcase.
1
2
2
6
9
8
1
4
3
5 7
10
13
25
26
14
20
12
21
11
15
19
18
16
28
27
17
24 23 22
29
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
°
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)
2
6
9
8
1
4
3
5 7
10
13
25
26
14
20
12
21
11
15
19 18
16
28
27
17 29
24 23 22