4-19
CYLINDER HEAD
CYLINDER HEAD
REMOVING THE CYLINDER HEAD
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.
Order
Part name
Q'ty
Remarks
Seat and fuel tank
Refer to "SEAT, FUEL TANK AND SIDE
COVERS" section.
Exhaust pipe and silencer
Refer to "EXHAUST PIPE AND SILENCER"
section.
Radiator
Refer to "RADIATOR" section
Carburetor
Refer to "CARBURETOR" section.
Camshaft
Refer to "CAMSHAFTS" section.
1
Bolt
2
2*
Bolt
4
Refer to NOTE.
3
Cylinder head
1
4
Gasket
1
5
Timing chain guard (exhaust side)
1
Summary of Contents for YZ450F(Y)
Page 4: ......
Page 39: ...2 17 LUBRICATION DIAGRAMS 1 Intake camshaft 2 Exhaust camshaft A To main axle B From oil pump ...
Page 59: ...3 13 ENGINE INTAKE EXHAUST ...
Page 91: ...4 21 CYLINDER HEAD 3 Install Bolt cylinder head 1 Bolt cylinder head 10 Nm 1 0 m kg 7 2 ft lb ...
Page 110: ...4 40 OIL PUMP 15 Oil pump drive shaft 1 16 Rotor housing 1 Order Part name Q ty Remarks ...
Page 189: ......