Yamaha F100B - Removing the Timing Belt and Sprockets

POWR
Power unit
5-17
60C5D11
Removing the timing belt and
sprockets
1. Set the cylinder #1 piston position to
TDC of the compression stroke by align-
ing “” marks
a
and
b
on the driven
sprockets, and the hole
c
on the retain-
ing plate with the notch
d
on the cylinder
block.
CAUTION:
Do not turn the drive sprocket counter-
clockwise, otherwise the valve system
may be damaged.
2. Loosen the drive sprocket nut
1
.
NOTE:
• Use a deep socket
2
(M46) for this proce-
dure.
• Do not turn the camshaft when loosening
the drive sprocket nut.
3. Disconnect the cooling water hose
4
.
4. Remove the bracket
5
, spring
6
, ten-
sioner
7
, and timing belt
8
from the
driven sprocket side.
5. Loosen the driven sprocket bolts
9
and
remove the driven sprockets
0
.
S60C5160
S60C5170
Crankshaft holder 20
3
:
90890-06552
S60C5180
S60C5190