Ignition Coil: Testing and Inspection

1. Clean ignition coil. Check coil terminals for cleanliness, and exterior of body for cracks. Replace if necessary.
2. Check for carbon deposit or corrosion in the high tension cable inserting hole. Repair or replace if necessary.
3. Measure the resistance of the primary coil, secondary coil and external resistor. If the reading is not within the specified resistance, replace ignition coil.