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2 1/2 Briggs......doesn't run smoothly....surges at all speeds.

Briggs and Stratton mower engine

Cleaned carb and changed air filter has frest gas. Starts fine. Runs good until warm then there is a '' surge, slow down, surge, slow down at all speeds. Can't adjust it out.

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  • Anonymous Mar 16, 2014

    briggs and stratton 550 self propel clean air filter

  • Anonymous Mar 16, 2014

    briggs and stratton 550 surge

  • Anonymous Mar 30, 2014

    When I try to pull start I can't get a start. How do I clean carburator.

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Hi, Check that you have the correct spark plug fitted or fit a new one as it sounds like your plug is getting hot then shorting out.
Sometimes the magnito can do this as well. but I would start with the plug.

Posted on Nov 29, 2008

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