Spark plugs are vital components for gas-powered engines. However, they have a limited lifespan. Here are some common signs that it's time to replace yours.

An internal combustion engine needs three things to get going: Air, fuel, and spark. The throttle body and intake plenum feed air, while injectors spray the right fuel mix into the combustion chamber.

In the early '70s, Mopar changed the concept of a tune-up with the introduction of the breakerless, capacitor-discharged ignition system. Thus began the evolution of electronic engine controls. since ...

A faulty spark plug is one of the most common reasons a motorcycle refuses to start or runs poorly. By identifying symptoms early, removing the plug on a cold engine, cleaning or replacing it ...