I was running my reproduction Flying Yankee when it suddenly stopped. The e-unit buzzes, the lights are on, but motor won't engage. I thought the e-unit was stuck, but then I saw this green wire that isn't connected to anything. Is this the ground? Is it supposed to be connected somewhere? If anyone can tell me, I'd appreciate it!
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That looks like the magnet wire coming off the field coil. The other end should be right there. Hopefully it did not break right where it comes out from the inside of the coil.
Going solely by e-unit wiring convention, green should go to the non-ground end of the field. It should originate at one of the outer e-unit fingers on the four finger contact.
Note that blue (central two fingers on four) and yellow (lower two fingers) should each go to one of the brushes in this conventional scheme.
Black is the other outer finger of four, going to the e-unit solder lug.
Thank you both! I think I need to solder the loose wire to the copper wire coming out of the field coil. The e-unit was off when this happened. Should I leave the e-unit switch on or off to test the engine?
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