> I think your tractor has a 12 volt coil running > through a ballast resistor -- that"s what my 460 > had. I changed it to a 12 volt coil with an > internal resistor.
Not necessarily an improvement. In typical external resistor systems the ignition switch had a set of contacts that shorted out the resistor when the starter was cranking the engine. This compensated for the fact that the starter pulls the battery voltage down to about 9 volts and gave you extra spark when you needed it.
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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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