Yamaha F50A - Removing the Timing Belt and Sprockets

POWR
Power unit
5-31
62Y3A11
Removing the timing belt and
sprockets
1. Set the cylinder #1 piston position to
TDC of the compression stroke by align-
ing the “1” mark
a
on the driven sprocket
with the “” mark
b
on the cylinder
head.
CAUTION:
Do not turn the drive sprocket counter-
clockwise, otherwise the valve system
may be damaged.
2. Remove the breather hose and loosen
the drive sprocket nut
1
.
NOTE:
• Use a deep socket
2
(M42) for this proce-
dure.
• Do not turn the camshaft when loosening
the drive sprocket nut.
3. Remove the tensioner
4
and timing belt
5
from the driven sprocket side.
4. Loosen the driven sprocket bolt
6
and
remove the driven sprocket
7
.
È
For USA and Canada
É
For worldwide
NOTE:
Do not turn the camshaft when loosening the
driven sprocket bolt.
Crankshaft holder
3
: YB-06562
Crankshaft holder 18
3
: 90890-06562
Flywheel magnet holder: YB-06139
Flywheel holder: 90890-06522