2004-2005 Honda TRX450R Factory Sevice Manual, Page 137Get this manual
CYLINDER HEADIVALVE TOOLS Dri ver
Attadlment, 32 35 mm
07746-0010100
07749-0010000
Pilot, 20 mm 07746-0040500
Valve gui de driver, 5.5 mm 07742-00 10100
Valve guide reamer, 5.5 mm
07984-2000001
Valv spring compresso 07757-0010000
or 07984200000D (U.S.Aon ly)
Spr ing compressor att achm ent 07959-KM 30101