Yamaha YZ450FX 2019 Owner's Service Manual page 219

Removing the cylinder head
10 N ・ m (1.0 kgf ・ m, 7.4 lb ・ ft)
7
10 N ・ m (1.0 kgf ・ m, 7.4 lb ・ ft)
Order Job/Parts to remove
7 Oil check bolt
8 Oil passage plug
7
M
8
6
5-20
CYLINDER HEAD
1st 40 N ・ m (4.0 kgf ・ m, 30 lb ・ ft)
22 N ・ m (2.2 kgf ・ m, 16 lb ・ ft)
2nd
3rd
90˚
4th 2: 60˚ 3: 90˚
10 N ・ m (1.0 kgf ・ m, 7.4 lb ・ ft)
Q'ty Remarks
2
1