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Stator Troubles

TDub77

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Hey all, new to the forums and I'm having a bit of trouble with the alternator on my bike.
My bike is a 1980 CB 750.
The stator's yellow wires all test good, with ~.5 ohms between them all, none to ground. The issue is with the white/black wires. They show a wide range of Ohms between the two when on the bike, which from what I've read so far, is bad. However, the white/black wires test fine when the stator is off the bike. The wires start to show Ohms when the brushes start getting depressed. They also show Ohms if I press the brushes down with my fingers. I initially thought the rotor was bad, but the rotor tests good with I think ~.5 ohms between rings of copper. No wires show a short to ground.
Any ideas or other things to try?
 
I think read the rotor should show 4-4.5, much lower and the rotor is bad. I know if the stator goes it'll fry the reg/rectifier. I only found that out because of this forum, my mechanic didn't even mention that fact to me over the 5 yrs that I put a new regulator/rectifier in EVERY year!

I left it off the road because I didn't know that. I'm finally getting her running this year, can't wait.

Good luck.
 
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