The small wire should have voltage when in the S position of the key. The starter relay should engage and spin the engine when that little terminal gets voltage. If you take the wire off of the terminal and use a jumper to that small terminal from the battery non grounded terminal, it will either work (crank) or not work (not crank). If it still does not crank, the fault is either a faulty ground to the starter/solenoid combo, or a bad solenoid. If it does crank the problem is in the wire coming from the ignition switch, or the supply to the switch. A volt meter will measure voltage on and open ended wire easily. This can fool a person into believing it is working. A poor connection, or bad wire can pass enough current to read good voltage, but not supply any where near enough to pull in the solenoid. If you leave it attached to the solenoid when checking its voltage when trying to crank, you will find your answer related to the switch and wires. !2v it is the solenoid, less than 6v it is the switch/wires. Jim
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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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