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Join Date: Jun 2006
Location: Corpus Christi, Texas
First off, I wouldn't buy the OEM R/R. There are better third party R/Rs out there. Rick's and Electrosport come to mind. Other than some minor circuitry differences, I don't think there's anything else to differentiate between them, if that. I do know that for the third party suppliers, the part numbers are the same.
As far as the circuitry, it's a diode rectifier and a control circuit. The factory module was found to be poor quality which may explain why they fail the way they do.
93 VN 750 "Ursula"
Moved R/R 08Sep06
R/R rewire 17Feb07
New R/R, Installed 14Jun08
New Stator installed 10 Jun08
Maintenance Free Battery 12Jan08