How to Replace a Foam Air Filter

A Briggs & Stratton genuine foam filter element is designed to properly fit your engine and will keep dust particles from getting into your engine.

How to Replace a Foam Air Filter

Your foam filter requires replacement every 3 months or after 25 hours of use, whichever occurs first, more often under dusty conditions.

How To Change a Foam Air Filter:

1. Remove air filter screw.
2. Carefully remove air filter assembly and discard foam.
3. Clean all metal air filter assembly parts.
4. Saturate new foam filter with fresh engine oil.
5. Wrap foam in clean cloth and squeeze to remove excess oil.
6. Assemble foam filter so lip extends over edge of air filter body.
7. Reinstall air filter assembly carburetor.

How It Works:

The “foam only” style air filter system works by trapping dirt and debris through the use of motor oil spread throughout the oil foam holding medium. A dry or non-oiled oil foam filter will trap only the largest particles. If the air filter element is foam only, it MUST be oiled and serviced regularly.