The three wire is the way to go. It is not difficult to wire up, as there is an adapter harness avalible that has the diode in it. You simply connect your large battery wire to the "B" terminal of the alternator, plug the harness into the top of the alternator, connect the short wire out of the harness to the alternator's "B" terminal, and connect the long wire to a source of keyed 12-volt power, such as the key switch side of the coil. Your guy at the parts yard probably has that harness on hand, I think Tisco makes it.
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Today's Featured Article - Upgrading an Oliver Super 55 Electrical System - by Dennis Hawkins. My old Oliver Super 55 has been just sitting and rusting for several years now. I really hate to see a good tractor being treated that way, but not being able to start it without a 30 minute point filing ritual every time contributed to its demise. If it would just start when I turn the key, then I would use it more often. In addition to a bad case of old age, most of the tractor's original electrical system was simply too unreliable to keep. The main focus of this page is to show how I upgr
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