Add Yahoo as a preferred source to see more of our stories on Google. A close-up shot of black and yellow lawn mower - KateV28/Shutterstock Your lawn mower has done its job, and the grass looks great.

We may receive a commission on purchases made from links. It often starts the same way. You're halfway through the yard, the mower's humming along, and then out of nowhere, the engine sputters, chokes ...