Liangzi Power UTV1000-3, Руководство по обслуживанию

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11. TROUBLESHOOTING
11- 11
2. Problem with fuel system (carburetor, fuel pump, hoses, etc.).

Clean, inspect, repair or replace defective parts. Replace defective part(s).
3. Check engine compression.

Insufficient engine compression. Replace defective parts.

Valve seat worn and/or damaged. Repair by performing valve guide
procedure (refer to CYLINDER AND HEAD). Readjust valve clearance.
4. Internal engine problem.

Overhaul engine to find defective parts. Refer to the appropriate section in
ENGINE.
Symptom: ENGINE HARD TO START
1. Check idle bypass valve.

Stuck or defective. Refer to ENGINE MANAGEMENT.
2. Check closed throttle and idle actuator with DELPHI.

Wrong TPS zero setting/idle bypass valve reset. Refer to ENGINE
MANAGEMENT.
3. Check engine compression.

Wrong adjustment (likely too tight). Refer to ENGINE MANAGEMENT.
4. Check engine compression.

Insufficient engine compression. Replace defective part(s) refer to LEAK
TEST.
5. Verify spark plug condition.

Defective, improperly set, worn out, fouled. Identify source of problem
and correct. Replace.
6. Check fuel level in fuel tank and fuel pressure.

Low or no fuel pressure. Replace defective part(s) refer to FUEL TANK
AND FUEL PUMP.
7. Check CAPS (camshaft position sensor).

Defective sensor/wiring. Refer to ENGINE MANAGEMENT.
Symptom: ENGINE SUDDENLY TURNS OFF
1. Perform engine leak test.

Damaged head gasket and/or seal and/or leaking inlet/exhaust valve(s).
replace and/or repair defective parts.
2. Check spark plugs condition and/or gap.

Fouled spark plugs or wrong spark plug gap. Readjust gap and clean spark
plugs or replace..
3. Piston seizure.

Spark plugs heat range is too hot. Install spark plugs with appropriate heat
range (refer to TECHNICAL SPECIFICATIONS).

Compression ratio is too high. Install genuine parts.

Poor oil quality. Use recommended oil.

Leaks at air intake manifold (engine gets too lean). Retighten screws or
replace air intake manifold gasket.

Snow/water intrusion through intake system into combustion chamber. Clean