{"model":"mk2","model_name":"MK2 Supra","vehicle":"Toyota Supra A60 (1982–1986, 5M-GE)","document":"Repair Manual","section":"IG","section_name":"Ignition System","page":2,"pages_in_section":10,"title":"Precautions","section_header":"Ignition System — Precautions, Troubleshooting","ocr_text":"PRECAUTIONS\n\n1. Do not keep the ignition switch ON for more than 10 minutes if the engine will not start.\n\n2. As some tachometers are not compatible with this ignition system, we recommend that you confirm the compatibility of your unit before using.\n\n3. NEVER allow the ignition coil terminals to touch ground as it could result in damage to the igniter and/or the ignition coil.\n\n4. Do not disconnect the battery when the engine is running.\n\n5. Make sure that the igniter is properly grounded to the body.\n\n6. When a tachometer is connected to the system, connect the tachometer positive terminal to the service connector.\n\nTROUBLESHOOTING\n\nProblem | Possible cause | Remedy | Page\n\nEngine will not start/Hard to start (cranks ok) | Ignition problems\n• Ignition coil\n• Igniter\n• Distributor\nSpark plugs faulty | Perform spark test\nInspect coil\n\nInspect distributor\nInspect plugs | IG-4\nIG-7\n\nIG-7\nIG-5\n\nRough idle or stalls | Spark plugs faulty\nIncorrect ignition timing\nIgnition problems\n• Ignition coil\n• Igniter\n• Distributor | Inspect plugs\nReset timing\nPerform spark test\nInspect coil\n\nInspect distributor | IG-5\nIG-10\nIG-4\nIG-7\n\nIG-7\n\nEngine hesitates/Poor acceleration | Spark plugs faulty\nIncorrect ignition timing | Inspect plugs\nReset timing | IG-4\nIG-10\n\nMuffler explosion (after fire) all the time | Incorrect ignition timing | Reset timing | IG-10\n\nEngine backfires | Incorrect ignition timing | Reset timing | IG-10\n\nPoor gasoline mileage | Spark plugs faulty\nIncorrect ignition timing | Inspect plugs\nReset timing | IG-5\nIG-10\n\nEngine overheats | Incorrect ignition timing | Reset timing | IG-10","image":"https://tsrm.sasquatchvc.com/images/mk2/IG/IG_002.png","url":"https://tsrm.sasquatchvc.com/mk2/tsrm/IG/2","prev":{"page":1,"url":"https://tsrm.sasquatchvc.com/mk2/tsrm/IG/1","api":"https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/IG/1"},"next":{"page":3,"url":"https://tsrm.sasquatchvc.com/mk2/tsrm/IG/3","api":"https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/IG/3"},"section_url":"https://tsrm.sasquatchvc.com/mk2/tsrm/IG","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/IG/1","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/IG/2","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/IG/3","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/IG/4","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/IG/5","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/IG/6","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/IG/7","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/IG/8","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/IG/9","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/IG/10"],"note":"OCR transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}