The problem is in that fact that it takes two people to make it.
Bench top spark plug tester.
Then start the engine and watch the tester window.
A quality spark tester on the other hand requires tens of thousands of volts to fire.
Spark testers like the otc 6589 are the most reliable and easy to use since you don t have to rely on specific connector styles unlike inline models such as the ram pro diagnostic detector which may not work on some cars and may light up even if the current is too weak to create an arc at the spark plug.
To test the operation of both the ignition coil and the spark plug connect the tester between the spark plug boot and the spark plug.
Use a coil on plug cop probe.
Plus using a spark tester is safer than grounding a plug.
Just wanted to try it out and test the spark plug on my kerosene heater.
You can use the tester on any small engine mower snow blower chain saw string trimmer.
Because of this the tool provides an accurate measurement of whether there s enough spark to jump the plug gap.
Besides we have to check the spark plug whether it produces a spark.
A spark plug misfire will immediately be evident in the tester window.