2004-2005 Honda TRX450R Factory Sevice Manual, Page 136Get this manual
CYLINDER HEADIVALVE
SERVICE INFORMATION
GENERAL
Thi sect ion covers service of the camshafts, rocker arms, cy linder head and valvesThese servic es can be done it the engine installed the frame When disassembling, mark and store the disassembled parts to ensure that they are reinstalled in their original toea-
tions Clean all disassembled parts with cleaning solvent and dry th em by blowing them off it compressed air before inspection Camshaft and rocker arm lubricating oil is fed through oil passage in he cylinder head and camshaft holderClean the oil passag es before assembling them Be caref ul not to damage the mating surfaces when remov in he cylinder head cover and cyli nder head
SPECIFICATION S
Cy linder compression Valve clea rance Oecompressor cleara nce Valv e, valve guide Valve stem 0.0Valv guide 1.0Stern -to-q ulde clearance Valve guide projecti on above cylinder head Valve seat idt Valve spring Exha ust rocker arm Camshaft Free lengt rm 1.0Shaft .0A rm-to -shaft clearance Cam lobe height
Unit: mm (in )