Yamaha 2010 YZF-R6 Manual Instruction page 78

Tightening the Cylinder Head
Tightening the Cylinder Head (Turn-of-Nut Method)
1. Tighten the bolts in the tightening sequence of 1 to 7 to a snug torque of 28N•m (2.8kgf•m).
2. Tighten the bolts in the tightening sequence of 8 and 9 to a snug torque of 36N•m
(3.6kgf•m).
3. Tighten the bolt in the tightening sequence of 10 to a snug torque of 28N•m (2.8kgf•m).
4. Retighten the bolts in the tightening sequence of 1 to 10 to a turn-of-nut angle of 55°.
TIP
The numbers 1 to 10 show the sequence in which the bolts are tightened.
Apply engine oil to the bolt threads, contact surfaces, and washers.
These numbers indicate the tightening sequence.
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