Yamaha F150B Service Manual page 244

POWR
5. Tighten the camshaft cap bolts to the
specified torques in 2 stages and in the
sequence numbers (a, b, · · ·). Apply
engine oil to the camshaft caps and
camshaft cap bolts before installation.
EX
e
a
d
b
c
EX
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)
TIP:
Install the camshaft caps in their proper posi-
tions as shown and with the stamped num-
bers upside down.
6. Install the driven sprockets.
7. Hold the camshaft using a wrench, and
then tighten the driven sprocket bolts d
to the specified torque. Apply engine oil
to the driven sprocket bolts before
installation.
7-31
Power unit
IN
e
a
d
b
c
IN
d
Driven sprocket bolt d:
60 N·m (6.0 kgf·m, 44.3 ft·lb)
8. Install the dowel, plate, and drive
sprocket.
9. Install the cylinder head cover.
10. Install a new timing belt. See "Replacing
the timing belt" (7-18) step 10–step 12.