Hi guys, I've barely used the bike since my last post. In fact the only ride I did was at the beginning of April, after installing a digital voltmeter, a current cut-off, an alternator quick disconnect, and of course an external universal voltage regulator. When I went to get the motorcycle, the electrician showed me how the voltage was limited, even accelerating, to 13.8/14v measuring at the battery terminals, so everything seemed OK. This was at the end of last year, after that, between holidays and the extreme hot climate I only started the bike more or less regularly, but I didn't go anywhere until, as I've said, April. But rapidly I've noted that the voltmeter reading was too high (it is far from accurate, but the difference is constant and it's useful to take as a reference), high voltage that I confirmed measuring at the battery terminals with my own electrical tester. So my nightmare started again. I did the only ride with that overvoltage on the battery and all was fine, the bike runs as good as ever, but I don't want to melt another new battery so I decided to not ride it anymore until I really fix this. In the meantime I talked to the electrician, and he gave me little support, telling me that the voltage regulator could be dead, and that this components have no warranty (...). I contacted the maker of the voltage regulator (a well reputed brand in this country) and after many emails, the engineer that has my case asked me for info about the alternator. I could only gave him the manual's pages about the alternator, so he asked me to measure the the electrical resistance of the alternator's rotor. I uninstalled it (the feat is for another post...), take it to the electrician, and he measured exactly the 4 ohms that the manual tells. So now I don't know what to do, the alternator seems OK, an eventual lack of ventilation of the voltage regulator can't be the cause of failure, because I barely rode 25 blocks from the shop to my home, and after that the high voltage readings began.
I'm really in the dark with this issue, something electrical/electronic is my worst nightmare as a bike's problem, and on top of this NOBODY WANTS TO EVEN TOUCH THE ALTERNATOR BECAUSE IT'S FROM A MOTORCYCLE !!, I can't believe that specialized shops told me that they work only with car's alternators. So I have few options, one is to assume that the voltage regulator died by natural cause, as can be with any electronic device, and install a new one and cross my fingers, and the other is keep searching a brave man who dares to deal with a motorcycle's alternator, something very difficult until now...
Any thought or advice is welcomed.
