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 - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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