11. TROUBLESHOOTING
11-
9. Check encoder wheel.
Bent tooth. Refer to MAGNETO SYSTEM.
10. Check engine compression.
Insufficient engine compression. Replace defective part(s).
Symptom: ENGINE DOES NOT START
1. Electrical problem.
Determine if the electrical system works correctly (fuse(s), battery, wiring harness,
etc.). Refer to IGNITION SYSTEM.
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.