Yamaha LB50IIAC - Yamaha Piston Inspection

3. Check the bearing cage for excessive
wear or damage.
Check
the rollers for signs of flat spots.
if found, replace pin and bearing.
4.
Apply a light film of oil to pin and bea-
ring surfaces. Install in connecting rod
small end. Check
for play. There should
be no
noticeable vertical play. If play
exists, check connecting rod small end
for wear. ( Replace pin and bearing or all
as required.)
5.
The piston pin should have no
noticeable free play in piston. If the
piston pin is loose, replace the pin and/
or the piston.
Piston
1. Remove piston ring.
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