Yamaha F90D - Checking the Timing Belt and Sprockets; Installing the Sprockets and Timing Belt

6D81G11
5-18
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2
3
4
5
6
7
8
9
Checking the timing belt and
sprockets
1. Check the interior and exterior of the tim-
ing belt for cracks, damage, or wear.
Replace if necessary.
2. Check the drive sprocket and driven
sprockets for cracks, damage, or wear.
Replace if necessary.
Installing the sprockets and timing
belt
1. Install the dowels and driven sprockets
1
, and check that “” marks
a
and
b
on the driven sprockets are aligned.
2. Tighten the driven sprocket bolts
2
to
the specified torque.
NOTE:
• Apply engine oil to the driven sprocket bolts
before installation.
• Do not turn the camshafts when tightening
the driven sprocket bolts.
1
6
7
8
S6D85380
S6D85660
1
a
b
Flywheel magnet holder: YB-06139
T
R
.
.
Driven sprocket bolt
2
:
60 N·m (6.0 kgf·m, 44.3 ft·lb)
S6D85390
2
2
Power unit