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Air Filter & Pre-Cleaner (Service Part 493537S) Installation Instructions

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Air Filter Removal & Re-installation Instructions
For Service Part No. 790166 / DIY Part No. 5404

4.75-5.25 ft-lbs Gross Torque†, 475-525 Series™
3.5-4.0 Gross HP/CV‡

1. Push in the tabs located on the sides of the air filter cover (A), while pulling cover off.
2. Remove cartridge (B) carefully to prevent debris from entering carburetor.
3. Re-install new air filter assembly in base (C).
4. Replace cover by securely snapping tabs back into place.

Replace filter cartridge at three month intervals or 25 hours,
whichever occurs first. Replace more often under extremely dusty conditions.

NOTICE: Do not use pressurized air or solvents to clean cartridge. Pressurized air can damage cartridge; solvents will dissolve cartridge.

†All power levels are stated gross torque per SAE J1940 as rated by Briggs & Stratton.
‡All power levels are stated gross HP per SAE J1940 as rated by Briggs & Stratton.

lawnmower cuts out for no reason

Asked by: delaypla
This could be caused by a couple things; carbon build-up on the head, valves not seating properly, intake manifold air leak, blockage in the carburetor, etc. Please take the unit to an authorized Briggs & Stratton service dealer for diagnosis. You can locate one here:
Answered by: Nicole_BriggsStratton
Date published: 2014-08-20

Oil leak ing from caborator when engine running what is causing this?

Asked by: pg23
Oil in the carburetor or air filter is likely coming from the breather. You will want to make sure that the breather tube is not bent, kinked, or clogged in any way. If it is not you may need to replace the breather tube. You will also want to check the o-rings and seals on the dipstick assembly to make sure that they are intact.
Answered by: Nicole_BriggsStratton
Date published: 2014-08-08

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