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7. CYLINDER HEAD (2-STROKE)/
CYLINDER/PISTON VITALITY 50
PISTON RING INSTALLATION
Install the piston rings onto the piston.
Apply engine oil to each piston ring.
· Be careful not to damage or break the
piston and piston rings.
· All rings should be installed with the
markings facing up.
Top
· After installing the rings, they should
rotate freely without sticking. Second
Side Rail
Oil Ring
Side Rail
Measure the connecting rod small end I.D.
Service Limit: 13.06mm replace if over
Measure the connecting rod to piston pin
clearance.
Service Limit: 0.06mm replace if over
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