Yamaha YZ450F Owner's Service Manual page 216

Removing the cylinder head
10 Nm (1.0 m kgf, 7.2 ft Ibf)
6
15 Nm (1.5 m kgf, 11 ft Ibf)
Order
5 Timing chain guide (intake side)
6 Oil check bolt
7 Oil passage plug
6
7
Part name
*
Q'ty
1
2
1
For installation, reverse the removal proce-
dure.
5-21
CYLINDER HEAD
30 Nm (3.0 m kgf, 22 ft Ibf)
20 Nm (2.0 m kgf, 14 ft Ibf)
10 Nm (1.0 m kgf, 7.2 ft Ibf)
Remarks