2003 Polaris 3 PRO X Factory Service Manual, Page 54Get this manual
ENGINE Disassembly, Cont4Remove cylinder base nutsNote location of acorn nuts on exhaust side (where applicable)5Carefully remove cylinders while supporting pistons and connecting rods to prevent piston damageRefer to General Inspection Procedures in this chapter6Remove outer piston pin C-clips using scribe through access slot in piston