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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A man changing the spark plug on a lawn mower - Fertnig/Getty Images If you own a gas-powered lawn mower, whether it is a compact ...

I’ve restored dozens of gas engine lawn mowers, and it’s been my experience that people put them out in the trash while the machines have plenty of life left in them. The average mower sitting ...