2011 Polaris Ranger RZR ATV Service Manual, Page 86Get 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 bore measurement obtained during the "Cylinder Inspection" procedure5 mm Piston Pin Measurement Locations Piston Piston Pin 2Measure piston pin O.DReplace piston andor piston pin if out of specification
Piston to Cylinder Clearance: See "800 EFI Engine Service Specifications" on page 3.8