PRECAUTIONS 1. Do not keep the ignition switch ON for more than 10 minutes if the engine will not start. 2. As some tachometers are not compatible with this ignition system, we recommend that you confirm the compatibility of your unit before using. 3. NEVER allow the ignition coil terminals to touch ground as it could result in damage to the igniter and/or the ignition coil. 4. Do not disconnect the battery when the engine is running. 5. Make sure that the igniter is properly grounded to the body. 6. When a tachometer is connected to the system, connect the tachometer positive terminal to the service connector. TROUBLESHOOTING Problem | Possible cause | Remedy | Page Engine will not start/Hard to start (cranks ok) | Ignition problems • Ignition coil • Igniter • Distributor Spark plugs faulty | Perform spark test Inspect coil Inspect distributor Inspect plugs | IG-4 IG-7 IG-7 IG-5 Rough idle or stalls | Spark plugs faulty Incorrect ignition timing Ignition problems • Ignition coil • Igniter • Distributor | Inspect plugs Reset timing Perform spark test Inspect coil Inspect distributor | IG-5 IG-10 IG-4 IG-7 IG-7 Engine hesitates/Poor acceleration | Spark plugs faulty Incorrect ignition timing | Inspect plugs Reset timing | IG-4 IG-10 Muffler explosion (after fire) all the time | Incorrect ignition timing | Reset timing | IG-10 Engine backfires | Incorrect ignition timing | Reset timing | IG-10 Poor gasoline mileage | Spark plugs faulty Incorrect ignition timing | Inspect plugs Reset timing | IG-5 IG-10 Engine overheats | Incorrect ignition timing | Reset timing | IG-10