What basic maintenance should be performed on a lawnmower regularly to ensure it stays in good repair?
For a walk behind mower:
- check fuel
- check oil, add as needed
- light cleaning (quick wipe down with a rag or broom)
Roughly twice a season or as needed:
- blade sharpening
- detailed cleaning (get all the stuck on gunk from under the deck)
First mow of the year. Do in order to save trips to parts store:
- inspect pull cord start
- sharpen blade
- belts as needed
- change oil
- change sparkplug, be sure to check the gap
- change air filter
- shot of carb cleaner into carburettor
- lubricate control cables
- lubricate and inspect wheels+bearings
Last mow of the year:
- drain or add stabilizer to fuel
- detailed cleaning
I would recommend you consult the manuals that came with your lawnmower. Most lawnmowers I have owned have a general manual for the overall manual, and one specifically for the engine. There will be for normal usage maintenance, along with recommendations for short-term and long-term storage.
At a minimum, I change the oil and sharpen the blade at least once per mowing season. I change the air filter and spark plug yearly. I clean any oil or gas residue and grass from the mower after each use.
Regular maintenance of a lawnmower includes fuel checks, cleaning (dirt and dust) and oil check. If you had your lawnmower in a self storage unit for awhile, check for rust on the blades, wheels and motor. Any major rust in these areas means your lawnmower is as good as junk. However, light rust can be removed with a rust remover and always make sure all parts are oiled well. If you’re planning to put your lawnmower in a self storage for awhile, make sure all parts are oiled thoroughly and all fuel drained. As for occasional maintenance, you can sharpen or replace all blades for maximum efficiently when mowing, change air filter if necessary, check belt for any wearing or stretching and change all oil if needed. Also, the storage for your lawnmower should be dry and well ventilated.