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  1. DrewVIII

    Briggs and Stratton 20hp I\C INTEK OHV model 406777 bogs and dies

    You know what I think you hit the nail on the head! I looked in the tank and it looks like there is some kind of rubber seal that crumbled and is in the bottom of the tank. Never crossed my mind! I will see what I can do to clean it up and hopefully that solves it!
  2. DrewVIII

    Briggs and Stratton 20hp I\C INTEK OHV model 406777 bogs and dies

    I have an issue that may have been covered in another thread, but I am hoping you all can either point me there or just help out here. This engine is in a Scotts/John Deere lawn mower. After running for about 45 minutes it starts to run rough and the RPMs start to ebb and flow. Eventually it...
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