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Yamaha F150B - Camshaft; Removing the Timing Belt, Driven Sprocket, and Camshaft

Yamaha F150B
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7-28
Camshaft
0
1
2
3
4
5
6
7
8
9
10
A
Removing the timing belt, driven
sprocket, and camshaft
Check the valve clearances before removing
the parts.
Do not turn the crankshaft counterclock-
wise, otherwise the water pump impeller
may be damaged.
Do not turn the crankshaft or the driven
sprockets when the timing belt is not
installed. Otherwise the piston and
valves, or intake and exhaust valves
could collide with each other and be
damaged.
1. Remove the cylinder head cover.
2. Remove the timing belt, see “Replacing
the timing belt” (7-18) step 6–step 9.
3. Remove the timing belt tensioner.
4. Remove the drive sprocket a, plate b,
and dowel c.
5. Hold the intake and exhaust camshafts
d using a wrench, and then remove the
bolts e.
6. Remove the driven sprockets.
7. Gradually loosen the camshaft caps f
and g in several stages and in the
sequence numbers (a, b, ···).
NOTICE: Do not to tilt the camshafts.
8. Remove the camshafts h and oil seals
i.
c
a
b
e
d
d
g
g
g
g
f
g
g
g
g
f
EX IN
#1
#2
#3
#4
a
b
c
d
e
a
b
c
d
e

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