1986-1987 Honda TRX350 FourTrax 4X4, 1987-1989 TRX350D Foreman 4X4 Service Manual, Page 72Get this manual
CYLINDER HEADVALVES Groove the rocker arm shaft dowel pins with grinder and drive the dowel pins out using screwdriverPull the rocker arm shafts out of the cover and remove the rocker arms(1) GROOVE
INSPECTION
Inspect the rocker arms and shafts for wear or damageNOTE If the rocker arms require servicing or replacement, inspect the cam lobes for scoring, chipping or flat spots
Measure the 1.0of each rocker arm
SERVICE LIMIT: 12.04 mm (0.474 in)