2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 180Get this manual
CYLINDER HEADVALVECAMSHAFT Install and tighten the four camshaft holder boltsApply molybdenum oil solution to the cam lobesCAM LOBES
BOLTS Remove the stopper tool from the cam chain tensioner lifter and install the sealing bolt with new sealing washerInstall the cylinder head (page 8-20)SEALING WASHER