Spark plugs are integral components for gas-powered internal combustion engines. These diminutive devices create the electric spark that ignites the fuel and air mixture inside your motor. When ...

If your lawn mower runs on gas, then you've got a spark plug tucked inside the engine that plays a bigger role than you might think. Spark plugs are what fire up the engine in the first place. They ...

And you can do it safely, in under an hour, and for less than $50. Credit... Supported by By Tim Heffernan Visuals by Clark Hodgin After 16 months, my home renovation is nearing a happy milestone: ...