Forum Discussion
j-d
Apr 19, 2016Explorer II
Even if a DVOM has the range scale for that kind of voltage, it probably could not capture and report what the spark was, since the duration is so short. We used to be able to get little neon spark testers. They worked with the old points and condenser ignition but electronic fires so fast the neon doesn't have time to react. This is a "Small Engine Spark Tester"
Put spark plug wire on the terminal as usual, connect alligator clip to ground. I made mine by cutting part of the threaded shell off an old plug, jamming a copper tubing fitting over it, attaching alligator clip with a short screw.
...OR... push a small screwdriver with a plastic handle into the terminal and lay the screwdriver down on a metal part of the engine so there's a 1/4" gap. Tape it in place if you have to. You should see a blue spark jump the gap. Probably will have to have the sparkplug out of the engine.
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...OR... push a small screwdriver with a plastic handle into the terminal and lay the screwdriver down on a metal part of the engine so there's a 1/4" gap. Tape it in place if you have to. You should see a blue spark jump the gap. Probably will have to have the sparkplug out of the engine.
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