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How to Maintain a Gas Lawn Mower

Gas lawn mowers, like many machines, need to be maintained to ensure that they work properly.  To maintain your lawn mower you will need to make sure that all components are checked carefully and regularly.  Regular checking will ensure that you are able to cut your grass throughout the entire mowing season without a problem.


  • Make sure that grass is removed from the cutting blades after use.  You can do this by using a flathead screwdriver to scrap any material that is left on the blades.  Do this carefully to make sure that you do not scratch the blade.

  • Check air filters periodically to make sure that they are clean.  If your air filter looks dirty, replace it with a new one before the next time that you mow your lawn.

  • Check the oil in your mower to make sure that there is a proper amount of oil.  If it looks likes the level is low, make sure to fill the oil reservoir to the fill line right away.

  • Check the spark plugs to make sure that they are clean and dry.  If they look black or wet, they need to be cleaned or replaced to ensure that the engine of your mower is running properly.

  • Inspect the blades on your mower periodically throughout the mowing season.  If they seem dull, sharpen them with a file for a better cut.  Blades that look as though they are bent or damaged in any way should be replaced immediately.

  • Make sure that your gas tank is full when you start mowing.  It is not good for the lawn mower engine if you run out of gas in the middle of mowing.