Yamaha FJR13AG Service Manual page 413

TIP
• Lubricate the bolts "1"–"10" thread and wash-
ers with engine oil.
• Lubricate the bolts "11"–"31" thread part and
mating surface with engine oil.
• Apply locking agent (LOCTITE®) to the
threads of the bolt "16".
• Finger tighten the crankcase bolts.
• M9 × 115 mm bolts: "1"–"10"
• M8 × 65 mm bolt: "11"
• M8 × 50 mm bolt: "12"
• M6 × 80 mm bolts: "23", "25"
• M6 × 65 mm shoulder bolts: "13", "14"
• M6 × 65 mm bolts: "19", "22", "24", "26"
• M6 × 55 mm bolts: "15"–"18", "20", "21", "27"–
"30"
• M6 × 45 mm bolt: "31"
21 18
13 15
7 5
10
4
25
11
12
31
28
7. Tighten:
• Crankcase bolts (M9 × 115 mm) "1"–"10"
New
EWA16570
WARNING
Replace the bolts with new ones.
TIP
The tightening procedure of crankcase bolts "1"–
"10" is angle controlled, therefore tighten the
bolts using the following procedure.
▼ ▼▼▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼
a. Tighten the crankcase bolts in the proper
tightening sequence as shown.
New
17
20
16
19 22
1
3
9
2 6
8
23
14
24
29
30
27
26
▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼▼▼
Crankcase bolt "1" –"10"
1st
20 Nm (2.0 m·kgf, 14 ft·lbf)
b. Loosen and retighten the crankcase bolts in
the proper tightening sequence as shown.
Crankcase bolt "1" –"10"
2nd
20 Nm (2.0 m·kgf, 14 ft·lbf)
c. Tighten the crankcase bolts further to reach
the specified angle 115–125° in the proper
tightening sequence as shown.
Crankcase bolt "1" –"10"
Final
Specified angle 115–125°
EWA16610
WARNING
If the bolt is tightened more than the speci-
fied angle, do not loosen the bolt and then re-
tighten it. Instead, replace the bolt with a new
one and perform the procedure again.
ECA18350
NOTICE
• Do not use a torque wrench to tighten the
bolt to the specified angle.
• Tighten the bolt until it is at the specified
angle.
TIP
On a hexagonal bolt, note that the angle from
one corner to another is 60°.
5-84
CRANKCASE