2008 Polaris Ranger RZR Service Manual, Page 79Get this manual
ENGINE Piston-to-Cylinder Clearance
Measure piston outside diameter at point mm up from the bottom of the piston at right angle to the direction of the piston pinSubtract this measurement from the maximum cylinder measurement obtained in Step 55 mm 2Measure piston pin O.DReplace piston andor piston pin if out of tolerance
Piston Pin Measurement Locations Piston Piston Pin
Piston to Cylinder Clearance: See "800 EFI Engine Service Specifications" on page 3.9