Crankcase Bolt - Yamaha YZF-R25 Service Manual

TIP

Crankcase bolt

Tighten the crankcase bolts "1"–"21" in the proper tightening sequence as follows:
1. Lubricate the crankcase bolts "1"–"15" and "17"–"21" threads, mating surfaces with the engine oil.
2. Lubricate the mating surface of the bolt "16" with engine oil and apply Yamaha bond No. 1215 to the
bolt threads.
3. Tighten the crankcase bolts "1"–"6" to 20 Nm (2.0 m·kgf, 14 ft·lbf).
4. Loosen and retighten the crankcase bolts "1"–"6" to 24 Nm (2.4 m·kgf, 17 ft·lbf) in the proper tight-
ening sequence.
5. Tighten the crankcase bolts "7"–"8" to 20 Nm (2.0 m·kgf, 14 ft·lbf).
6. Loosen and retighten the crankcase bolts "7"–"8" to 26 Nm (2.6 m·kgf, 19 ft·lbf) in the proper tight-
ening sequence.
7. Tighten the crankcase bolts "9"–"21" to 10 Nm (1.0 m·kgf, 7.2 ft·lbf) in the proper tightening se-
quence.
×2
FWD
×6
1
3
5
2
2-15
TIGHTENING TORQUES