Thanks shovithead, I did this to mine and it didn't spin when I hooked it to a battery, I spun the gear myself when it was hooked up and it started to spin on its own but very slow so I'm thinkin my genny needs to be rebuilt, hopefully it will be able to be rebuilt. Yes the battery I used was a fully charged good battery.Any year Ironhead, from about 65 or 66, when they were 6 volt gennies. So say 67 to about 81 or 82, when they went to the alternator. Just look at the top and make sure it is a 12 volt one. Cycle electrics makes a good aftermarket one, if you find one of those, but other than that, the HD ones are good enough for daily riders. You can test with a battery. Hook the positive side to the A terminal, and the neg to the F terminal, and it should spin like a electric motor. If not, I would be wary.
When you remove a generator, and disconnect the wires, they lose polarity. Basically, it confuses the process. So when you rebuild one, or just remove for other work, you need to flash it, to polarize it. Hook up and install normally. Take a piece of wire, or use a small battery charger. If you use wire, hook it to the positive side of the battery, and it has to be long enougn to go to the generator(or the A terminal on the regulator) and strike it across the "A" terminal. The two terminals(threaded connectors) should have either a "A" or a "F" stamped next to the hookup. A is for Armature, and the F is for the Field coils. The wire should spark. I usually do it two or three times, and then you are ready to run. After rebuilding the gen, or having to flash it, I use a voltage meter, to make sure the gen is putting out at least 12.5 volts. But they can put out up to 14, if they are in really good shape. The later post, about Cycle Electrics, is true. They are more expensive, but they are bullet proof, unless you beat it with a big hammer. Their regulators have the same results. If i did not mostly restore these bikes, I would put CE gens on all mine. Which is why I rebuild so many HD generators.I got the whole cleaning process bit you lost me at "flash", what does this mean?
No doubt.vtwinmotors said:The Cycle electric generator is around 250.00 at retail and if you get the one with the built in regulator it is 350.00 But you hook up one wire and go enjoy your motorcycle ride. That is right one wire no problem. Good luck I know you will be very happy with the Cycle Electric brand.