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Primary Winding Resistance Test

  1. Remove the connectors from the positive and negative terminals of ignition coil. Set ohmmeter to low scale and zero pointer.
  2. Connect ohmmeter to coil negative and positive terminals. Resistance should be 1.13-1.23 ohms at 75°F (24°C). If coil temperature is above 200°F (93°C), 1.5 ohms is acceptable.
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