7. CYLINDER HEAD (2-STROKE)/
CYLINDER/PISTON VITALITY 50
CYLINDER/PISTON INSPECTION
Check the cylinder and piston for wear or
damage.
Clean carbon deposits from the exhaust port
area.
Be careful not to damage the cylinder
inside wall.
Measure the cylinder bore at three levels of
A, B and C in both X and Y directions.
Avoid the port area. Take the maximum
figure measured to determine the cylinder
bore.
Service Limit: 39.05mm replace if over
Inspect the top of the cylinder for warpage.
Service Limit: 0.10mm replace if over
7-9
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