2006 Honda TRX680 Rincon Factory Service Manual, Page 212Get this manual
CYLINDER HEADVALVECAMSHAFT Do not strike the cylinder head too hard and do not damage the mating surface with screwdriverfive bolts cylinder head
CYLINDER HEAD gasket dowel pins DOWEL PINS
CYLINDER HEAD DISASSEMBLY
To prevent loss of tension, do not compress the valve springs more than necessaryRemove the valve spring cotters using the valve spring compressorTOOL: Valve spring compressor