Testing Universal Ignition Module

Learn how to test a universal ignition module to determine whether it is in need of replacement.


Step 1

Set the multimeter to the 20k ohms setting. Place the red and black probes at opposite ends of the ignition module.

Step 2

A reading of 4.54 kOhms indicates an as new ignition module. As the reading increases your spark’s power may decrease as an estimate resistances above 6-8K Ohms┬ámay cause failure of the spark needed to start a mower.

If resistance is infinite your module is damaged and will need to be replaced.

8 Responses to “Testing Universal Ignition Module”

  1. Hi guys,

    Your ‘Testing Universal Ignition Module’ video demonstration does not appear. Instead, the web link presents the ‘Briggs Ignition Coil Testing’ video.

    Also, in your text description above for the Testing Universal Ignition Module; is a new module supposed to indicate 4.54 Ohms or 4.54 KOhms when tested with the multimeter? You are advising that the multimeter should be set to the 20KOhm setting, so I am guessing that the reading should be 4.54 KOhm. Is this correct?

    Thanks and regards,

    • Hi Peter

      thanks for pointing out those mistakes, Yes we meant to say 4.54 Kohms. I have adjusted the text and video link.

  2. watching testing ignition module i noticed that the black connecter was not in com on your multimeter is it not nessecary with this test with my multimeter i was told black lead always goes to com is this ok as you have it in red

  3. what if you get a reading of 1.25??? Does that mean you have to replace it??

    • lachlan Osmotherly July 12, 2016 at 6:02 am Reply

      Hi Marie

      A low reading suggests that the module is internally shorted and would need to be replaced

  4. Hi guys. Awesome videos. Really helpful. I’m having issues with my victa. Usually starts when I get out of the shed after a couple pulls but if it stalls or I turn it off I can never start it again. I basically have to leave it for a day. I’ve gone through and checked the carb, seals etc, throttle and All seems ok. When its running and it sounds like it’s about to stall if tilt it up on its back wheels it kicks in to life . But it always sounds like it’s struggling.

    Any ideas?

    • Hi Nick

      Is the mower blowing a lot of blue smoke? it could be that the fuel mix is a bit rich. If so the mower would rev slower than usual and seem to struggle and tipping it backwards would make it a little harder for the fuel to get into the engine possible leaning out the mix.

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