KYMCO People Service Manual page 29

1. GENERAL INFORMATION
ENGINE NOISE
Valve noise
Piston noise
Cam chain noise
Crankshaft noise
Symptom
Gear noise
PEOPLE/PEOPLE S 250
Probable Cause
cValve clearance too large
dWorn camshaft lobe
cWorn piston rings
dWorn piston pin and connecting rod small
end
eExcessive carbon build-up in combustion
chamber
cDamaged cam chain tensioner
dWorn cam gear teeth
eWorn or damaged cam chain
fExtended cam chain
cFaulty crankshaft bearing
dWorn crank pin bearing
cWorn or damaged final reduction gears
dWorn final reduction gear shaft splines
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