How to Change Your Riding Lawn Mower's Air Filter

Length of Clip:  1:57

Changing your mower's air filter just once per season can increase power output, fuel efficiency, and engine life.  It's an easy way to get more out of your riding lawn mower.  Refer to your operator's manual to ensure you purchase the right replacement air filter for your machine.

 

Under no circumstances should you start or run your riding lawn mower with the air-cleaner assembly or air filter removed.  Doing so can pull debris into the engine and damage it.

 

Before you begin, make sure you have a cloth handy.  Then, follow the 10 steps below - demonstrated in the video - to change your mower's air filter.




Step 1: Position the riding lawn mower

Begin by placing the riding lawn mower on a flat, level surface..

Step 2: Check that the engine is cool

Make sure the engine is cool, and open the hood..

Step 3: Disconnect the spark plug wire

Disconnect the spark plug sire(s) to prevent your machine from starting while you're changing the mower air filter.

Step 4: Wipe off the mower air filter assembly

Clean the area around the mower air filter.  This will reduce the change that dirt and other debris will get into the engine w hile you're changing the mower air filter.

Step 5: Detach the mower air filter cover

Take off the mower air filter cover.

Step 6: Locate and remove the mower air filter

Remove the mower air filter.  The mower air filter is most commonly made of pleated paper.

Step 7: Clean or replace the pre-filter

If your engine's air cleaner is equipped with a pre-filter, remove it for cleaning.  The pre-filter is usually made of foam.  You can wash it with liquid detergent and water.  If it's excessively dirty, replace it.  Otherwise, clean the pre-filter, and allow it to dry before reinstalling it..

Step 8: Install the new mower air filter

Install the cleaned or new pre-filter.  Then, put in the new mower air filter..

Step 9: Reattach the mower air filter cover

After you change the mower air filter, reconnect the spark plug wire(s) and close the hood.  If you find that you need to replace other

Step 10: Put your riding lawn mower back together

After you change the mower air filter.  Reconnect the spark plug wire(s) and close the hood.  If you find you need to replace other riding lawn mower parts, MTD has you covered.

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