So, before cranking up the engine, remove and inspect the spark plug. Pull the hooded electrical cable off the spark plug, then use a small brush to clean the area around the spark plug to prevent ...

Connect the tool between the spark plug and the plug wire. The tool is double-ended to offer a straight boot and a 90boot on one tool. With the engine running, the tool flashes a mirror image of ...

Easily diagnose engine ignition issues with our Inline Spark Plug Tester. This Straight Boot Engine Ignition Tester is designed for small engines, making it the perfect Ignition Coil Tester for ...

While not always measurable in terms of power, it’s a good idea to use these plugs for any street engine. Recently, however, we ran into a dyno tuning issue with a 406-cu.in. small-block Chevy ...

As their name suggests, spark plugs, the small, screw-like parts of an engine, create a spark of electricity that begins the combustion process to start a car. And let's be honest: most drivers ...

If you've ever owned a car with a small turbocharged engine ... on its own without the help of a spark plug, causing knock, which could destroy the engine. Turbocharged cars are programmed ...

“The !&@*!! thing won’t start!” What now? If you’re already a shade-tree mechanic and know a few things about small engine troubleshooting, you hunker right down and start tinkerin ...

The design of the spark plug really hasn’t changed very much since the gasoline engine was invented–they’re a device that creates an electric spark across a very precise small gap to ignite ...