KYMCO Vitality 50, Manual, Page: 62 / 275

3
. INSPECTION/ADJUSTMENT
3-14
VITALITY 50
VALVE CLEARANCE
(4-STROKE)
Remove the met-in box (
13-5) and center
cover. (
13-6)
Remove cylinder head cover. (
6-4)
Turn the A.C. generator flywheel to the top
dead center (TDC) on the compression
stroke so that the “T” mark on the flywheel
aligns with the index mark on the left
crankcase cover.
The time marks on the cam sprocket must
be flush with the cylinder head surface and
round hole on the cam sprocket must be
facing up as shown.
If the round hole on the cam sprocket are
facing down, turn the crankshaft clockwise
one full turn and realign the timing marks
with the cylinder head surface so it is facing
up.
Insert a thickness gauge between the valve
stem end and the adjusting screw on the
rocker arm.
If the clearance is out of specification, bring
it into the specified range.
Valve Clearance : IN: 0.04mm
EX: 0.04mm
Loosen the lock nut and adjust by turning
the adjusting nut
Valve Adjuster E036
• Inspect and adjust valve clearance
while the engine is cold (below 35 ).
Index Mark
“T” Mark
Valve Adjuster
Thickness Gauge
Round Hole
• Check the valve clearance again after
the lock nut is tightened.
Special
Time Marks