Yamaha YFZ450S 2003 Service Manual page 162

Order
4 Cylinder head
5 Cylinder head gasket
6 Dowel pin
7 Timing chain guide (exhaust side)
NOTE:
*1: 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 in two steps of 90° to reach the specified
angle of 180° in the proper tightening sequence.
Job/Part
CYLINDER HEAD
Q'ty
1 Refer to "REMOVING THE CYLINDER
HEAD" and "INSTALLING THE CYLIN-
DER HEAD".
1
2
1
For installation, reverse the removal pro-
cedure.
4 - 19
ENG
Remarks