KYMCO K-XCT 300i Owner's Manual page 142

K- XCT 300i
2. Periodic Maintenance > Valve Adjustment
Measure the valve clearance with a thickness feeler gauge. Insert the
feeler gauge between the tappet adjusting screw and the valve stem.
The clearance is correct when there is a light drag on the feeler gauge.
The clearance is the same for the exhaust and intake valves. If the
clearance is out of spec move on to the adjustment section.
Valve clearance IN: 0.10 mm EX: 0.10 mm
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