If you own a lawn mower, you know how much time they save you on yard work — but you may not know how much maintaining them can also save you in the long run. While newer lawn mowers last longer, if you want to get the most from your investment, it’s necessary to maintain your mower and avoid any problems. With that in mind, here are some lawn mower repair and maintenance tips that you should know.
Sharpen the Blade
A dull blade will tear your grass, resulting in brown difficult-to-repair patches. Sharper blades result in a clean cut that promotes healthy growth. You should sharpen your blades at least once a season or more often if you notice the quality of your mow declining. The best way to sharpen is with a file or grinder for lawn mower blades.
Change the Oil
One of the most important things you can do to extend your lawn mower's lifespan is to change the oil often. Most manufacturers recommend changing the oil every 50 hours or once a season, whichever comes first. If you use your mower a lot, you may need to change the oil more often.
Check for Blown Fuses
Another way to keep your lawn mower running is to check the fuse box often. Look for any blown fuses and replace them as soon as possible. Checking fuses will help prevent damage to your lawn mower and keep it running. If the engine is hard to start up or cuts out when it does start, the problem could be the spark plug.
Replace Spark Plugs on an Engine
Replacing spark plugs is another important thing you can do to keep your lawn mower engine running well. It's a simple process that only takes a few minutes, but it can make a big difference in how your engine runs. Remove the old plug from the engine. Use a wrench to turn it counterclockwise, and pull it out with your fingers. Clean any corrosion off the threads before screwing in the new plug by applying some WD-40 or other oil. Then, screw it until tight by turning clockwise with a wrench.
Clean the Deck
Over time, your lawn mower's deck will become caked with grass, dirt, and debris. This buildup can lead to rusting and decreased performance. Remove any grass or debris buildup. Then, use a garden hose or pressure washer to remove any remaining dirt. Finally, apply a thin layer of oil to the deck to protect it from future corrosion.
Change the Air Filter
A clean air filter keeps the engine clean and improves gas mileage. Replace air filters every 25 hours or at least once a year, whichever comes first. The lawn mower service manual will include instructions on changing your air filter. Use only genuine parts from the manufacturer when replacing your air filter.