Symptom Diagnosis (CARBURETED - JUSTY): Notes

Symptom checks cannot be used properly unless the problem occurs while the vehicle is being tested. To reduce diagnostic time, ensure steps in BASIC TESTING and TESTS W/CODES articles in the ENGINE PERFORMANCE Section have been performed before diagnosing a symptom. Symptoms available for diagnosis include:

• Does not start - cold
• Does not start - warm
• Rough or unstable idle
• Idle speed too high
• Engine stalls
• Improper engine operation/poor fuel mileage
• Engine afterburn occurs
• Engine backfires
• Engine knocks