Briggs & Stratton Lawn Mower Engine Carburetor O-Ring #270344S

This video provides step-by-step instructions for replacing the carburetor o-ring on Briggs and Stratton small engines, commonly found in Toro, Lawn Boy, John Deere, Craftsman, and Murray lawn mowers, riding tractors, zero-turn radius mowers, wheeled edgers, pressure washers, and generators. The most common reasons to replace the carburetor o-ring are when the carburetor is replaced, during other repairs, or if it breaks or becomes damaged, causing the engine to run roughly.

Click here to purchase Part #270344S:

Additional small engine repair, troubleshooting tips, help with finding your model number, and part replacement videos:

All of the information in this o-ring replacement video is applicable to the following brands: Briggs & Stratton, Toro, John Deere, Lawn Boy, Craftsman, Murray

Tools used: Phillips head screwdriver, 5/16” socket or nut driver, pliers, 3/8” socket or nut driver

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2 thoughts on “Briggs & Stratton Lawn Mower Engine Carburetor O-Ring #270344S

  1. i did all this, but the o-ring is leaking like a sieve. it probably got pinched or something equally irritating. you never know if the o-ring is hooped until you have it all together with gas running through!

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