1986-1987 Honda TRX350 FourTrax 4X4, 1987-1989 TRX350D Foreman 4X4 Service Manual, Page 81Get this manual
CYLINDER HEADV ALVES
CAMSHAFT INSTALLATION
Align theT" mark on the flywheel with the index mark on the alternator cover by turning the flywheel clockwise
Apply molybdenum disulfide grease to the camshaft journalsInstall the cam sprocketcamshaft and camshaft side cap
Insta ll the cam sprocket with its timing marks facing to left
Position the cam lobes down and align the timing marks on the cam sprocket with the cylinder head upper surfaceRail the cam chain over the cam sprocket and install the cam sprocket onto the shou lder of the camshaft'"