KYMCO 2006 MXU 500 Off-Road Owner's Manual page 352

8. CYLINDER HEAD/VALVES
INSPECTION
Cam chain guide
Inspect the cam chain slipper surface of the
cam chain guide for wear or damage.
Camshaft holder
＊
Always replace the camshaft holder and
cylinder head in pairs
Inspect the camshaft surface of each camshaft
holder for scoring, scratches, or evidence of
insufficient lubrication.
Check the stop pin spring on the exhaust
camshaft holder for damage.
Replace the stop pin assembly with a new one
if the spring is damage.
8-9
MXU 500
Cam Chain Slipper
Camshaft Holders
Stop Pin