16. IGNITION SYSTEM ATV 50 IGNITION CIRCUIT (MXU 50 REVERSE) SERVICE INFORMATION GENERAL INSTRUCTIONS · Check the ignition system according to the sequence specified in the Troubleshooting. · The ignition system adopts CDI unit , change gear control and the ignition timing cannot be adjusted. · If the timing is incorrect, inspect the CDI unit, A.C. generator, change gear control and replace any faulty parts. Inspect the CDI unit with a CDI tester · Loose connector and poor wire connection are the main causes of faulty ignition system. Check each connector before operation. · Use of spark plug with improper heat range is the main cause of poor engine performance. · The inspections in this section are focused on maximum voltage. The inspection of ignition coil resistance is also described in this section. · Inspect the ignition switch according to the continuity table specified in page 18-6. · Inspect the spark plug referring to Section 3. 16-3