Cylinder Head - Yamaha WR450FN 2022 Owner's Service Manual

EAM20107

CYLINDER HEAD

Removing the cylinder head
7 N ・ m (0.7 kgf ・ m, 5.2 lb ・ ft)
Order Job/Parts to remove
Seat
Side cover (left/right)
Air scoop (left/right)
Fuel tank
Exhaust pipe/Silencer
Radiator hose
Coolant temperature sensor coupler
Throttle body
Camshaft
Upper engine bracket
1 Bolt (cylinder head)
2 Bolt (cylinder head)
3 Cylinder head
4 Timing chain guide (intake side)
5 Cylinder head gasket
M
3
4
5-20
CYLINDER HEAD
40 N ・ m (4.0 kgf ・ m, 30 lb ・ ft)
1st
23 N ・ m (2.3 kgf ・ m, 17 lb ・ ft)
2nd
3rd 90˚
4th 60˚
10 N ・ m (1.0 kgf ・ m, 7.4 lb ・ ft)
LT
5
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 5-6.
Disconnect.
Disconnect.
Refer to "THROTTLE BODY" on page 7-4.
Refer to "CAMSHAFT" on page 5-13.
Refer to "ENGINE REMOVAL" on page 5-6.
2
4
1
1
1