2003 Polaris MSX 140 Personal Watercraft Service Manual, Page 68Get this manual

2003 Polaris MSX 140 Personal Watercraft Service Manual, Page 68

EngineCooling W120HO- DFI Engine Inspection Piston InspectionMeasurement 1Check piston for scoring or cracks in piston crown
if piston or cylinder is worn and recondition or replace as necessaryPiston to Cylinder Clearance Service Limit: .0062.00752
(.157.191mm) 10mm Piston Piston Pin 1Position each piston ring 12I (1.3 cm) from the top of the cylinder using the piston
to push it squarely into placeMeasure installed gap with feeler gauge at both the top and bottom of the cylinderNOTE: difference
in end gap indicates cylinder taperThe cylinder should be measured for excessive taper and out of roundReplace rings if the
installed end gap exceeds the service limitNOTE: The cylinders on all W120HODFI engines are lined with Nicasil platingMeasurements