Im in a hurry, hard to tell from pic if its all correct or not. If its a 12 volt Neg ground tractor using a 6 volt coil and external ballast, power comes from ign switch,,,,,,,to and through ballast to + side of coil,,,,,,,,out - side of coil to distributor. With ign on and points closed not running Id expect 12 volts out of switch,,,,,,,,12 to high input side of ballast,,,,,,,,,around 5 to 7 on output of ballast and coils + input,,,,,,,,near zero on coils output to distributor since the points are closed. The ballast needs to be the correct ohms so it doesnt drop too much voltage (around 5 or 6 volts) and weaken the spark
Below is my troubleshooting procedure, gotta run I will check back later
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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