Cylinder Head - Yamaha YZ450FX 2019 Owner's Service Manual

EAM20107

CYLINDER HEAD

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
Seat
Side cover (left/right)
Air scoop (left/right)
Fuel tank
Exhaust pipe and silencer
Radiator hose
Coolant temperature sensor coupler
Throttle body
Camshaft
Upper engine bracket
1 Bolt (cylinder head)
2 Bolt (cylinder head)
3 Bolt (cylinder head)
4 Cylinder head
5 Cylinder head gasket
6 Timing chain guide (intake side)
7
M
8
6
5-19
CYLINDER HEAD
40 N ・ m (4.0 kgf ・ m, 30 lb ・ ft)
1st
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
Refer to "GENERAL CHASSIS" on page
4-1.
Refer to "GENERAL CHASSIS" on page
4-1.
Refer to "GENERAL CHASSIS" on page
4-1.
Refer to "FUEL TANK" on page 7-1.
Refer to "ENGINE REMOVAL" on page 5-1.
Disconnect.
Disconnect.
Refer to "THROTTLE BODY" on page 7-5.
Refer to "CAMSHAFT" on page 5-11.
Refer to "ENGINE REMOVAL" on page 5-1.
2
3
1
1
1
1