Then start the engine and watch the tester. Testing the Coil or Armature. Zero resistance would indicate a shorted coil while a high resistance reading would indicate an open coil. Most people think you can check a small engine’s ignition system by removing the spark plug and grounding it while …

Disconnect the mounting bolts... Test the Primary Winding. How to Test Ignition Coils Safety First.

They should be on or near the engine. To test the ignition coil connect the ohmmeter's two test leads to the coils primary terminals (+ and -).

The coil is probably the easiest thing to check and therefore the first thing to check when embarking upon ignition system troubleshooting. Remove the Ignition Coils.

Testing the ignition coil and the spark plug Connect the tester between the spark plug boot and the spark plug. Let your vehicle cool down, and put on the emergency brake.

Find the ignition coils.

Most coils should read between 0.4 and 2 ohms.

Step 1: Clip one end of the spark tester (service part number 19368) to the ignition cable and the …