Cylinder Head Cover Disassembly; Camshaft - Honda TRX400EX FOURTRAX 1999 Service Manual

CYLINDER HEAD/VALVE

CYLINDER HEAD COVER DISASSEMBLY

Hold the cylinder head cover securely and loosen the
sub-rocker arm shafts, being careful not to damage
the mating surface of the cylinder head cover.
Remove the shafts, sealing washers, sub-rocker arms
and wave washers.
Hold the cylinder head cover securely and loosen the
rocker arm shafts, being careful
mating surface of the cylinder head cover.
Remove the shafts, sealing washers and rocker arms.
INSPECTION

CAMSHAFT

Check the cam and journal surfaces of the camshaft
for scoring, scratches or evidence of insufficient
lubrication.
Check the oil holes in the camshaft for clogging.
Turn the outer race of each bearing with your finger.
The bearings should turn smoothly and quietly.
Replace the bearing if the outer race does not turn
smoothly and quietly.
Measure the camshaft runout using
SERVICE LIMIT: 0.03 mm (0.001 in1
7-6
not to damage the
a dial indicator.