Cylinder Head - Yamaha YZ450F(X) Owner's Service Manual

CYLINDER HEAD

REMOVING THE CYLINDER HEAD
Order
Seat and fuel tank
Exhaust pipe and silencer
Radiator
Carburetor
Camshaft
1 Bolt
2* Bolt
3 Cylinder head
4 Gasket
5 Timing chain guard (exhaust side)
Tighten the cylinder head bolts to 30 Nm (3.0 m•kg, 22 ft•lb) in the proper tightening sequence, remove and retighten the
cylinder head bolts to 20 Nm (2.0 m•kg, 14 ft•lb) in the proper tightening sequence, and then tighten the cylinder head bolts
further to reach the specified angle 180° in the proper tightening sequence.
Part name
4-19
CYLINDER HEAD
Q'ty
Refer to "SEAT, FUEL TANK AND SIDE
COVERS" section.
Refer to "EXHAUST PIPE AND SILENCER"
section.
Refer to "RADIATOR" section
Refer to "CARBURETOR" section.
Refer to "CAMSHAFTS" section.
2
4 Refer to NOTE.
1
1
1
Remarks