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    Surging on a Kohler SV540 courage engine

    I bought a Troy Bilt Pony some time ago with a Courage SV540. The problem was severe surging - to the point the mower was unusable. After Checking out gaskets, carbs, governors, governor springs, tank venting, etc, etc., I finally looked at the fuel shutoff valve. gas was barely dripping out - a...
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