How To Clean Lawn Mower Air Filter

How To Clean Lawn Mower Air Filter

The first line of Défense against the dirt and debris churned up during the mowing process is a properly operating air filter on a gas-powered lawnmower. Dirt is prevented from entering the engine through the carburetor when the air filter is in good functioning order.

However, if the air filter becomes clogged, dirt and other debris can enter the engine, potentially causing start-up issues and shortening the engine’s life.

The foam air filter system uses only a foam filter, whereas the dual-element system uses both a paper and a foam filter. Both air filter systems should be maintained from time to time and more frequently if you work in dusty environments.

You’ll need to locate the air filter in your mower and remove the cover to inspect it. Check to see if the filter is too dusty or oily; it must be cleaned if it is.

How To Clean Foam Air Filter?

Engage the parking brake after turning off the riding lawnmower’s engine. Pull the spark plug wire from the spark plug if you’re using a push mower. Remove the air filter housing’s wing nut.

The housing should be removed. Remove the foam filter by lifting it out with your hands. Hot water and a grease-cutting liquid soap are used to clean the filter. With a paper towel, squeegee any remaining water from the filter—as much water as you can get out of the way.

After the riding lawnmower’s engine is turned off, apply the parking brake. If you’re using a push mower, unplug the spark plug wire. Take off the wing nut on the air filter housing. It’s time to get rid of that housing. Using your hands, lift the foam filter out.

Cleaning the filter is done with hot water and grease-cutting liquid soap. Remove any residual water from the filter by squeegeeing it with a paper towel. Get out of the way as much water as you can.

Cleaning Process Of A Dual Filter

1) Focus On The Filter’s Specifications

When it comes to cleaning an air filter, the first step is to do your homework. For more information on the various sections, consult internet resources or your user manuals.

This will assist you in understanding the model and obtaining various parts for your lawnmower. The air filters on some lawnmower types are cleaned in a pretty straightforward manner.

2) Plug Off The Lawnmower

After you’ve done your homework and are familiar with the brand and manufacture of your mower’s engine, as well as the parts that go into them, the next obvious step, which many people overlook, is to ensure sure the lawnmower is turned off and unplugged from the power source.

A lawnmower has various moving elements that work even when the engine is turned off, in addition to the engine. As a result, as a safety precaution, make sure the lawnmower is completely switched off and disconnected. Spark plugs are an essential component of an engine that allows it to start.

They’re usually seen near the machine’s front. Once you’ve located them, remove the wires connected to the spark plugs and disconnect them.

3) Target The Location Of Air Filters

Now, you have to locate the air filters. The air filter on a lawnmower is usually found towards the top of the engine, encased in a metal or plastic housing held with screws. The air filters can be removed by unscrewing the wing nut that secures the air filter housing. After that, take out the filter by lifting it out of the housing.

To clean, remove the filter and wash it thoroughly with hot water and liquid soap until all greases are gone. Moreover, use a rinse-off technique to remove as much water as possible.

After you’ve finished rinsing, apply just the correct amount of engine oil to the air filter, as too much could cause difficulties with the exhaust system. As a result, the air filter is recommended to be squeezed to remove the excessive oil content.

4) Clean The Dual Air Filter

Clean the dual-element air filter, a cartridge, with soap water and a brush after cleaning the pre-cleaner. Remove any material from the rubber gasket encapsulation that seals the air filter on the carburetor unit after the filter has been cleaned. Moreover, inspect the gasket for any tears or leaks, and if any exist, be sure to seal it off properly.

5) Unscrew The Casing Carefully

Remove the air filter by unscrewing the casing and cleaning the rubber gasket on the inside. If your screws are corroded or broken, make sure you have a sufficient supply of the correct size. As a result, before beginning the cleaning process, you must have the appropriate tools and resources.

It’s critical to keep track of all the parts and components you take out. So, the screws don’t go misplaced; keep them in a bowl. On the other hand, if necessary, use your phone to capture images or videos of each screw and how the parts fit together.

This step will assist you in reassembling the machine in a neat and orderly manner, preventing you from becoming frustrated due to misplaced tiny screws and components.


If you have the correct instructions and tools, cleaning the air filter on a lawnmower is a lot easier. Cleaning and replacing the air filter is required for the machine’s health and efficiency from time to time. A blocked air filter can obstruct the natural combustion process in the engine, causing it to fail and eventually seize.

It’s critical to understand the type of air filter you have to maintain it properly. This is because different types of air filters necessitate different procedures. The instructions in this article are more than enough to maintain and keep the lawnmower’s air filter clean for a long span.

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