Yamaha F200B, Service Manual

Page: 297 / 579

7-38
7
Removing the timing belt
• When the timing belt is not installed, do
not turn the crankshaft or driven sprock-
ets. Otherwise, the pistons and valves
or intake and exhaust valves could col-
lide with each other and be damaged.
• Do not twist, turn inside out, or bend the
timing belt beyond the maximum limit of
25.0 mm (1.0 in). Otherwise, the timing
belt can be damaged.
1. Disconnect the air temperature sensor
coupler, and then remove the blowby
hose and intake silencer. See “Removing
the intake silencer” (6-17).
2. Remove the intake manifold (PORT).
See “Removing the intake manifold” (6-
17).
3. Disconnect the quick connectors. See
steps 3–5 in “Disconnecting the quick
connector” (6-7).
4. Remove the fuel hoses and fuel rail cov-
ers. See steps 2 and 3 in “Removing the
fuel injector” (6-45).
5. Remove the wiring harness guide. See
steps 5–29 in “Removing the wiring har-
ness” (7-20).
6. Align the “
L L L L
” mark
a
on the drive
sprocket with the “
L L L L
” mark
b
on the cyl-
inder block.
7. 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.
8. Remove the timing belt guides
1
.
9. Insert a hexagon wrench into the hole
e
,
turn the timing belt tensioner gradually
clockwise, and then insert a ø5.0 mm
(0.2 in) pin
2
into the hole
f
.
a
c
b
d
1 1
2
f e
Timing belt