Since this is 6V with a distributor, you may have the situation where the starter is stealing enough electricity from the ignition coil to weaken or extinguish the spark when trying to start. The spark inside the cylinder under pressure is often weaker than it appears outside the cylinder. You can jump start from a 12V to see if that makes any difference or use separate batteries for the coil & starter. There are directions on how to do this--you have to be careful not to parallel the 6V and 12V battery--I converted mine to magneto to make this a non-issue. If the distributor was ever off the tractor, it is very easy to put it on 180 degrees out, so it is sparking at the exhaust stroke instead of compression. Most of the other good advice is already here: clean & gap plugs, fresh gas, check timing, oil in the cylinders to improve compression, etc. Two years ago "stale gas" stumped me good. Especially true this time of year when it is cold and damp.
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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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