2008 Polaris Ranger RZR Service Manual, Page 70Get this manual
ENGINE Cylinder Head Disassembly
1Carefully remove the cylinder components4Remove valve guide sealsIMPORTANT: It is recommended to replace seals whenever the cylinder head is disassembledHardened, cracked or worn valve seals will cause excessive oil consumption and carbon buildup5Mark the valves with white penRemove the valves from the cylinder headThis will ensure that the valves are properly placed during engine reassembly