This was a requested topic after the last post. BDM charging system, 40Amp or what?
I can not tell you why BDM originally listed the stock 2005 newer charging system as a 40Amp system, they were doing it before I got there. One assumption is that that is the size of circuit breaker (40amp) that was installed on the bike vs a 32amp CB from previous years.
I can tell you the system used on 2005 and newer is actually rated at 35Amps from the supplier. Average hi we saw was about 30amps however the system is capable of supplying 35amps. BDM is selling a newly designed voltage regulator now, I can not tell you the part number or cost on it but it looks just like the old one but has a red stripe on the B+ wire. It looks the same from the outside but let me assure you that is where the similarities end. It has gone thru extensive testing before it was ever released, I left before too many of them hit the fields so I can not speak on the reliability numbers coming back from the field.
Compufire does make a nice regulator (they have been updated since recalls several years back), it is the 32amp black finned regulator. It has been installed on some BDMs with a stock rotor/stator and performed well however it was not a large sample lot and not a lot of miles on them. Based on the output I have seen from the stock BDM system you should be fine with these regulators and I am pretty sure I have seen a lot in here running them as well, I will caution that they are only rated at 32 amps and the BDM system can theoretically put out 35amps, use your own judgment and request information from those on this site that may be running them. You would run into issues at ~3300 RPM or higher, at that point the BDM system could put out more than 32 amps.
will surely get you!:lol:
