KYMCO UXV 500i Service Manual page 151

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8. CYLINDER HEAD/VALVES

Support both ends of the camshaft with V-

blocks and check the camshaft runout with a

Service limit: 0.05 mm (0.002 in)

Inspect camshaft lobes for

pitting/scratches/blue discoloration.

Measure the cam lobe height.

Service Limits: IN : 37.11 mm (1.4844 in)

EX: 36.86 mm (1.4744 in)

If any defects are found, replace the camshaft

with a new one, then inspect lubrication

Check the decompression system by turning

the decompressor cam on the exhaust

You should be able to turn the decompressor

cam clockwise smoothly, but the

decompressor should not turn

counterclockwise.

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