8. CYLINDER/PISTON ATV 150/125
Inspect the top of the cylinder for warpage.
Service Limit: 0.05 mm (0.002 in)
Measure the connecting rod small end I.D.
Service Limit: 15.06 mm (0.6024 in)
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 Second
rotate freely without sticking. Side Rail
Oil Ring
Side Rail
8-8