Yamaha YZ450FX 2019 Owner's Service Manual page 211

Removing the camshaft
10 N ・ m (1.0 kgf ・ m, 7.4 lb ・ ft)
(4)
5
7
M
Order Job/Parts to remove
1 Timing mark accessing screw
2 Crankshaft end accessing screw
3 Timing chain tensioner cap bolt
4 Timing chain tensioner
5 Camshaft cap
6 Clip
7 Intake camshaft
8 Exhaust camshaft
E
5
6
E
6
M
5-12
10 N ・ m (1.0 kgf ・ m, 7.4 lb ・ ft)
(4)
E
8
6 N ・ m (0.6 kgf ・ m, 4.4 lb ・ ft)
4
10 N ・ m (1.0 kgf ・ m, 7.4 lb ・ ft)
6 N ・ m (0.6 kgf ・ m, 4.4 lb ・ ft)
LS
1
LS
10 N ・ m (1.0 kgf ・ m, 7.4 lb ・ ft)
Q'ty Remarks
1
1
1
1
2
2
1
1
CAMSHAFT
3
E
2