2001-2003 Honda TRX500FA Factory Service Manual, Page 134Get this manual
CYLINDER HEADVALVE Remove he spa rk plug capRem ove th sev en bo lt st hree sealing washersfour cap nuts, ashers and the cylinder head cover
Mar the p(.Jsh rods so they can be placed bad: In the" on9malocations
Remove th push rods, gasket and dowel ins
DISASSEMBLY
Rem ove he two setting bo lts and sealing was hersPush th rocker ar sh ah it he sma ll screw driv er th ro ugh the bo lt hol until the O-ring on th shaft is rem oved from the cy lind er head cover