Few things disturb us more than the bewilderment of a broken bolt or seized pipe plug in a casting. You’re at a loss for how to get the darned thing out. This is when you have to slow down and come up ...

Start by searching for a small cylindrical metal object sticking out of the engine. Chances are it’ll be on one side. This is the spark plug. Look for a fairly thick wire at the end of the spark plug.

We may receive a commission on purchases made from links. Nothing can bring a project to a halt quite like the discovery of a broken bolt. Whether it's something as simple as replacing an old mower ...

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.