Installing The Cylinder Head - Yamaha XF50W Service Manual

CYLINDER HEAD
EAS00231

INSTALLING THE CYLINDER HEAD

1. Install:
• gasket New
• dowel pins
2. Install:
• cylinder head
3. Tighten:
• cylinder head nuts
X | 10 Nm (1.0 m
• cylinder head bolts
X | 10 Nm (1.0 m
NOTE:
• Lubricate the cylinder head nuts with en-
gine oil.
• Tighten the cylinder head nuts in the proper
tightening sequence as shown and torque
them in two stages
• cylinder head tightening sequence
(1 -»2-»3-4-»2-»5-»6)
4. Install:
8camshaft sprocket
8timing chain
• • • • • • • • • • • • • • • • • • • • • • •
a. Turn the primary pulley counterclockwise.
b. Align the "I" mark a on the AC magneto
rotor with the stationary pointer b on the
crankcase cover.
c. Align the "I" mark c on the camshaft
sprocket with the stationary pointer d on
the plate.
d. Install the timing chain onto the camshaft
sprocket, and then install the camshaft
sprocket onto the camshaft.
NOTE:
8 When installing the camshaft sprocket, be
sure to keep the timing chain as tight as
possible on the exhaust side.
8 Align the slot on the camshaft with the tab
5-10
%m
ENG
* kg, 7.2 ft * lb)
* kg, 7.2 ft * lb)