Well then it could be a passage cloged. Ran into this with a Mc Culloch chainsaw once. The gasket that goes between the carb and the manifold. There is a little 1/8 dia. hole that was missing in the new gasket. Punched the little hole and bingo! Are you sure the needle seat isn't "f" up?. Is there slop in the linkage between the govenor and the carb butterfly valve? That will also wreck your day. That is why Briggs engines have that little spring on the rod going to the butterfly. Any slop at all and they go Squirrely. Have seen this so many times with portable generators. Those thing are ment to run full tilt at 3600 rpm. They work Perfectly when you pour in Hi-Test gas. With regular they keep hunting. Really, see if it helps.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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