KYMCO Active 50 Service Manual page 65

6
. CYLINDER HEAD/VALVES
Clean any gasket material from the cylinder
head mating surface.
Be careful not to damage the cylinder
head mating surface and valve seat.
CYLINDER HEAD INSPECTION
Check the spark plug hole and valve areas for
cracks.
Check the cylinder head for warpage with a
straight edge and feeler gauge.
Service Limit: 0.05mm repair or replace if
over
CAMSHAFT INSPECTION
Check each camshaft bearing for play or
damage. Replace the camshaft assembly with
a new one if the bearings are noisy or have
excessive play.
Check each cam lobe for wear or damage.
Measure the cam lobe height.
Service Limits:
IN: 25.8mm replace if below
EX:25.6mm replace if below
Camshaft Bearing
ROCKER ARM INSPECTION
ACTIVE 50
6-6