How to test a spark plug Although this is something you can certainly leave up to the professionals, it’s also simple enough to do at home.

Attach the spark plug to a spark plug tester, then connect the tester to the ignition wire. Start the engine and observe the ...

Check, replace and maintain the spark plugs in your car or motorcycle with this easy guide.

A. No, the spark plug and ignition coil are two separate parts. The ignition coil feeds the spark plug high voltage. Q. Yeah, But How Much Does It Cost To Replace an Ignition Coil?