2004 Polaris Sportsman 700 EFI ATV Service Manual, Page 63Get this manual
ENGINE 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: 1.827I (46.40 mm) Installed Height: 1.47" (37.34 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