KYMCO PEOPLE 250 Service Manual

6. CYLINDER HEAD/VALVES
6-3
PEOPL E 25 0
TROUBLESHOOTING
• The poor cylinder head operation can be diagnosed by a compression test or by tracing engine
top-end noises.
Poor performance at idle speed White smoke from exhaust muffler
• Compression too low • Worn valve stem or valve guide
• Damaged valve stem oil seal
Compression too low
• Incorrect valve clearance adjustment Abnormal noise
• Burned or bend valves • Incorrect valve clearance adjustment
• Incorrect valve timing • Sticking valve or broken valve spring
• Broken valve spring • Damaged or worn camshaft
• Poor valve and seat contact • Worn cam chain tensioner
• Leaking cylinder head gasket • Worn camshaft and rocker arm
• Warped or cracked cylinder head
• Poorly installed spark plug
Compression too high
• Excessive carbon build-up in combustion
chamber

KYMCO PEOPLE 250 Specifications

General

Displacement	249 cc
Fuel System	Electronic Fuel Injection
Front Suspension	Telescopic fork
Front Brake	Disc
Rear Brake	Disc
Front Tire	110/70-16
Rear Tire	140/70-16
Transmission	CVT
Seat Height	800 mm
Width	780 mm