2008 Polaris Ranger RZR Service Manual, Page 92Get this manual
ENGINE 10Lubricate connecting rods with 0W-40 engine oil13Install piston assemblies into cylinder aligning the piston pin holes, to ensure proper alignment of the pistons to the connecting rods upon assemblyPartially install the piston pins into the pistons11Install new cylinder gasket on crankcaseAlign gasket on the dowel pins for proper gasket alignmentNOTE: To help align the pistons, slide rod that is close to the same diameter as the wrist pin holes to properly align them in the cylinder14Position cylinder and piston assemblies onto the connecting rods and push the piston pins through the piston and connecting rods