Yamaha F350B - Removing the Timing Belt

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Timing belt
Removing the timing belt
When the timing belt is not installed, do not
turn the crankshaft, driven sprocket or VCT
assembly. Otherwise, the pistons and
valves could collide with each other and be
damaged.
1. Remove:
• Timing belt
a. Align the large “▲” mark “a” on the crank-
shaft with the rib “b” on the cylinder block.
b. Check that the “II” marks “c” on the VCT
assembly (PORT) and driven sprocket
(PORT) are aligned, and check that the “I”
marks “d” on the VCT assembly (STBD)
and driven sprocket (STBD) are aligned.
c. Remove the timing belt guides “1” and “2”
and plate “3”.
d. Hold the timing belt tensioner, applying a
torque of 12 N·m (1.2 kgf·m, 8.9 lb·ft) or
less clockwise, using a hexagon wrench
for 20 seconds, and then insert a 5.0 mm
(0.2 in) diameter pin “1” into the hole “a”.
Do not turn the timing belt tensioner by ap-
plying a torque higher than 12 N·m (1.2
kgf·m, 8.9 lb·ft). Otherwise, the timing belt
tensioner could be damaged.
TIP:
Leave the pin “1” inserted into the hole “a” of
the timing belt tensioner until the timing belt is
installed again.
b
a
d
c
1
2
1
3
a
1