Yamaha YZFR1Y(C) 2009 Service Manual page 315

6. Install:
• Crankcase bolts
TIP
• Lubricate the bolts "1"–"18" thread, mating
surfaces and washers with engine oil.
• Lubricate the bolts "19"–"40" thread and mat-
ing surfaces with engine oil (except "31").
• Apply LOCTITE® to the screw of the bolt
"31" and engine oil to the bearing surface.
• M9 × 100 mm bolts with washers: "1"–
"10". New
• M8 × 60 mm bolts with washers: "11"–
"18".
• M8 × 60 mm bolts: "19", "20".
• M6 × 70 mm bolt: "31".
• M6 × 65 mm shoulder bolts: "21", "22"
• M6 × 60 mm bolts: "30", "32"–"36".
• M6 × 50 mm bolts: "23"–"25", "27"–"29",
"40".
• M6 × 40 mm bolts: "26", "37"–"39".
7. Tighten:
• Crankcase bolts "1"–"10"
Crankcase bolts (M9 × 100 mm)
1st: 30 Nm (3.0 m·kgf, 22 ft·lbf)
*2nd: 18 Nm (1.8 m·kgf, 13
ft·lbf)
3rd: +60°
* Following the tightening order, loosen the
bolt one by one and then retighten it to
the specific torque.
TIP
Tighten the bolts in the tightening sequence
cast on the crankcase.
8. Tighten:
• Crankcase bolts "11"–"40"
Crankcase bolts "11"–"20"
24 Nm (2.4 m·kgf, 17 ft·lbf)
Crankcase bolts "21"–"40"
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
TIP
Tighten the bolts in the tightening sequence
cast on the crankcase.
5-74
CRANKCASE