There really isn't any bypass wire on this tractor but rather the resistance wire is bypassed. The power comes from the key switch through the multi connecter under the dash near the voltage regulator. The next piece of wire is the resistor which is crimped into the same connector at the solenoid with the wire that goes to the coil. The by pass is the I terminal on the solenoid. When the starter is engaged the I terminal is energized internally from the battery cable contact which provides cranking voltage to coil leaving equal voltage on each end of the resistance wire. When the solenoid is de-energized the current again comes through the key switch through the resistance wire to the coil.
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Today's Featured Article - The Fordson F Ignition System - by Anthony West. A fellow restorer contacted me earlier this year asking for some help and advice on a model F that he was restoring. He had over a period of months spent a fair amount of his hard earned cash on replacement parts for the old "trembler" ignition. Sadly though all his efforts seemed to be a waste of time and money as he still couldn''t get the temperamental old thing to run correctly!! If i said that this was a little frustrating for him that would be "conservative" in fact the problem had reduce
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1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
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