Yamaha F80B Service Manual page 104

POWR
3. Install the valve shims and valve lifters.
NOTE:
• Apply engine oil to the valve shims and
valve lifters before installation.
• Install the valve shims and valve lifters in
their original positions.
4. Install the camshaft (intake) 1 and cam-
shaft (exhaust) 2 with the new oil seals
3.
M M
3
E
M M
E
b
E
1
NOTE:
• Apply molybdenum disulfide grease to the
cam lobes.
• Be sure to install the camshaft with the fuel
pump drive cam b on the intake side.
5. Check that the camshaft dowel holes c
are in the position shown in the illustra-
tion. Adjust if necessary.
5-35
Power unit
S1280B
2
S6D85490
c
S6D85500
6. Install the camshaft caps in their proper
positions as shown with the stamped
numbers upside down.
7. Tighten the camshaft cap bolts to the
specified torques in two stages and in the
sequence shown.
6
A 2 A
7
A 2 A
8
A 2 A
9
A 2 A
10
NOTE:
Apply engine oil to the camshaft caps and
camshaft cap bolts before installation.
Camshaft cap bolt:
1st: 8 N·m (0.8 kgf·m, 5.9 ft·lb)
2nd: 17 N·m (1.7 kgf·m, 12.5 ft·lb)
8. Install the cylinder head cover.
1
2
2
2
3
2
4
2
5
A 2
S6D85510
6D93G11