Here's how to maintain your lawn mower:

·          Oil -- Check the oil before each use. Don't overfill, but make sure it meets the mark on the dipstick. Drain the oil at the end of each season.

·          Air Filter -- Change the air filter every three months -- or at least once a season.

·          Gasoline -- Use clean gasoline, not old gas left over from last year.

·          Spark Plugs -- Replace or clean spark plugs once per season.

·          Blades -- Inspect the mower blades for wear and tear; clean the blade housing to remove grass build-up.

Another tip:

Keep mud and other debris out of the engine. This will reduce the risk of the engine overheating.