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Should non-resister spark plugs read 0 ohms? 25 Nov 2021 08:53 #858324

  • ckahleer
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In troubleshooting intermittent cylinder drop out on my KZ305, I found both NGK D8EA plugs read 60 - 80K ohms. I bought a new set of plugs. One plug is 2.5 ohms, the other is 20K ohms.
Decided to check a bunch of other plugs laying around in the garage ,both used and unused. Readings were all over the place 1 ohm to readings in the meg ohms. I'm using a good Fluke meter with sharp pin probes.
I often check resistance of caps, wires, and coils, but never plugs before this. 

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