With the engine off look down in the throat of the carb and open up the throttle and you should see two pretty good squirts of fuel steaming down into the throat. If not more than likely you have a bad accelerator pump. Probably dried out over the years. As far as the nipple on the back put your finger on it while idling and see if you can feel any vacuum. Then bring the rpm's up to about 2000 and see if any vacuum on it then. If you have vacuum at any time on that port you can just plug it off. I believe it was used for the original choke system but that looks to be updated to electric choke now. Also may sure the dwell on the points is right at 28 to 30.
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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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