Luckily, that’s the kind of lesson you only need to learn once and, thankfully, it’s not the only way to test a spark plug. Like all other things mechanical, spark plugs will see their day.

Manufacturers have been doing their best to give gas-powered lawnmowers a run for their money with increasingly powerful and ...

In this video, I’ll show you exactly how to test your BMW spark plugs, ignition coils, and coil wiring without needing a multimeter—just using the kit provided. Whether it’s a misfire ...