KYMCO Downtown 350i Repair Manual page 187

4.Engine
Inspection
Inspect the camshaft cam heights for the intake and exhaust lobes. Inspect the
camshaft bearings for excessive play or roughness. Replace the entire camshaft
assembly if the bearings are rough or have excessive play.
Item
Camshaft cam height
Inspect the rocker arm shaft outer diameter for the intake and exhaust valves.
Item
Valve rocker arm shaft O.D.
Standard (mm)
IN 34.2987
EX 34.1721
Standard (mm)
IN 9.972 - 9.987
EX 9.972 - 9.987
4-13
Downtown 350i