1999-2002 TRX400EX Fourtrax Service Manual, Page 86Get this manual
7CYLINDER HEADNALVE SERVICE INFORMATION TROUBLESHOOTING CYLINDER COMPRESSION CYLIN DER HEAD COVERCAMSHAFT REMOVAL CYLINDER HEAD REMOVAL! DISASSEMBLY
7-1 7-3 7-4 7-4 7-9
VALVE GUIDE REPLACEMENT VALVE SEAT INSPECTIONREFACING CYLINDER HEAD ASSEMBLYI INSTALLATION CAMSHAFT CYLINDER HEAD COVER INSTALLATION
7-12 7-13 7-16 7-18
SERVICE INFORMATION
GENERAL
This section covers service of the camshaftrocker arms, cylinder head and valvesThese parts can be serviced with the engine installed in the frameWhen disassembling, mark and store the disassembled parts to ensure that they are reinstalled in their original locationsClean all disassembled parts with cleaning solvent and dry them by blowing them off with compressed air before inspectionCamshaft and lubricating oil is fed through oil passages in the cylinder headClean the oil passages before assembling cylinder headPour clean engine oil into the oil pocket in the cylinder head during assembly to lubricate the camshaftBe careful not to damage the mating surfaces when removing the cylinder head cover and cylinder headDo not strike the head cover and cylinder headtoo hard during removal