2004 Poalaris MSX110, MSX150 PWC Original Service Manual, Page 95Get this manual

2004 Poalaris MSX110, MSX150 PWC Original Service Manual, Page 95

ENGINE DISASSEMBLYASSEMBLY Engine Inspection Procedures Piston Inspection
Measure piston ring grove clearance
Out of specification: Replace piston ring or piston

Piston Ring

Feeler Gauge