2005 Polaris Sportsman 700/800 EFI Service Manual, Page 77Get this manual
CYLINDER HEAD DISASSEMBLY, CONTNOTE: Carefully remove the cylinder componentsPlace the hydraulic lifters (C), pushrods (D), and rocker arms (E) in safe, clean areaValve Spring Length: Std: 1.735I (44.069 mm)
6Remove 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 buildup