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    Kohler M12 won't go over an idle

    I have a 1990 Wheel Horse with a Kohler 12HP Magnum engine. I started it up, let it idle and warm up while I hooked up my small trailer to go out back and do some work. I started out about half throttle and within 20 feet it sputtered, backfired and quit. All it will do now is start, idle for 5...
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