Cylinder Head; Cylinder Head Removal - Yamaha YZ450F(W) Owner's Service Manual

CYLINDER HEAD

CYLINDER HEAD
Extent of removal:
Extent of removal
Preparation for removal
1
NOTE:
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.

1 Cylinder head removal

Order Part name
CYLINDER HEAD REMOVAL
Seat and fuel tank
Exhaust pipe and silencer
Radiator
Carburetor
Camshaft
1 Bolt
2* Bolt
3 Cylinder head
4 Gasket
5 Dowel pin
6 Timing chain guide (front)
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
2
1
4 - 30
ENG
Remarks