Hisun HS800UTV - Compression System; Poor Idle Speed Performance; Unstable Handling

TROUBLESHOOTING
- 345 -
COMPRESSION SYSTEM
Cylinder and cylinder head
1、Loose spark plug
2、Loose cylinder head or cylinder
3、Broken cylinder head gasket
4、Broken cylinder gasket
5、Worn, damaged or seized cylinder
Piston and piston rings
1、Improperly installed piston ring
2、Worn, fatigued or broken piston ring
3、Seized piston ring
4、Seized or damaged piston
Valve, camshaft and crankshaft
1、Improperly sealed valve
2、Improperly contacted valve and valve seat
3、Improper valve timing
4、Broken valve spring
5、Seized camshaft
Crankcase and crankshaft
Improperly seated crankcase
Seized crankshaft
Valve train Improperly adjusted valve clearance
Improperly adjusted valve timing
POOR IDLE SPEED PERFORMANCE
POOR IDLE SPEED PERFORMANCE
Carburetor 1、Improperly returned starter plunger
2、Loose pilot jet
3、Clogged pilot jet
4、Clogged pilot air jet
5、Improperly adjusted idle speed (throttle stop screw)
6、Improper throttle cable play
7、Flooded carburetor
Electrical system 1、Faulty spark plug
2、Faulty C.D.I. unit
3、Faulty pickup coil
4、Faulty charging/rotor rotation direction detection coil
5、Faulty ignition coil
Valve train Improperly adjusted valve clearance