KYMCO UXV 500i Service Manual page 153

8. CYLINDER HEAD/VALVES
Install the cam chain over the cam sprockets
and then install the intake and exhaust
camshafts.
＊
Install each camshafts to the correct
locations.
"IN": no decompressor cam
"EX": has a decompressor cam
Make sure the timing marks on the cam
sprockets are flush with the cylinder
head upper surface and punch marks
face upward as shown.
Install intake and exhaust camshaft holders to
the correct locations.
＊
Install each camshaft holders to the
correct locations.
"IN": no stop pin.
"EX": has a stop pin.
Exhaust Camshaft Holder
NOTE: Install the camshafts. a point for
attention.
Apply molybdenum disulfide and oil to
the camshaft journals of the camshaft
holder.
Apply molybdenum disulfide and oil to the
camshaft holes as picture.
Install the camshafts, then inject in the holes
onto the camshafts with oil until the oil
overflowed.
Stop Pin
UXV 500
Punch Marks
Timing Marks
8-12