The only lawn mower repair you’ll need this year is if you use your mower once a week for an hour or so. Those who live in hot, dusty climates or whose lawns are thick with tall grass should perform a thorough lawn mower repair at least once a month while using their mowers. In order to get the most out of your lawn mower, it is best to perform regular preventative maintenance on it. Keep reading to learn the basics of lawn mower upkeep and how to fix common issues.
1. Use the Right Fuel
Always use fresh gas with an octane rating of no lower than 87 and an alcohol content of no more than 10% when repairing your gas-powered lawn mower (E10). Because of oxidation and moisture attraction caused by alcohol in today’s fuels in the tank, small engines are susceptible to a variety of problems.
Plastic and rubber hoses and parts are also eaten away by it. A high-octane, alcohol-free 4-cycle fuel like TruFuel can help keep your engine running smoothly.
2. Check the Air Filter
Check the air filter if your mower is sluggish or difficult to start. It is recommended that paper or foam filters be replaced every 25 hours of operation, while paper filters with a foam pre-cleaner last for 100 hours of operation. In order to avoid causing perforations in the material of the paper air cleaner, never use compressed air to remove it. To ruin an engine, it only takes one piece of dirt to get through the filter.
3. Check the Plugs
Spark plugs may need to be replaced if a lawn mower is idling or running rough. After 100 hours of operation or once a season, whichever comes first, replace the plug with a new one that is properly gapped.
4. Clean the Deck
Debris buildup on a lawn mower deck will impede the mower’s ability to mulch or bag. Turn on the lawn mower and the hose attachment if the deck has one to help remove extra clippings. Scraping the deck is a good idea if there is a lot of buildup. Remove the spark plug and siphon out the fuel tank, then tip the mower back and thoroughly scrub the deck with a putty knife and a wire brush.
5. Sharpen the Blade
The lawn will be damaged if the mower blade is worn out. It is important to maintain a sharp blade to ensure that your grass grows well. Remove the blade and use a mill bastard file to sharpen it.
Equally remove metal from each side. Using a bench vise or a store-bought blade balancer, you can check the blade’s symmetry. When reinstalling the blade, use a torque wrench to tighten the blade-retaining bolt to the specifications in the owner’s manual.
6. Clean the Flywheel
During the middle of the season, remove the flywheel and clean the fins with an old paintbrush if your mower is used more than four hours a week or in dusty conditions.
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