30 Amp fuse it is.
The drawing on the ADV thread is not for our Versys. I'm not sure what it belongs to. I hope I didn't lead you down a wrong path.
Can you put up a picture of our charging sys schematic?
I don't have the software to convert it to a pdf file and post it here.
BTW, I'm still confused.
Well I looked at the drawing and that drawing is essentially the Versys headlight relay circuit.
Not many will admit confusion.
I will try and break it down.
First, between the alternator and regulator there is actually a single tap in the original harness that picks off one of the three phases, this goes to the headlight relay through a blocking / rectification diode,then coil circuit of the headlight relay, it's only purpose is to pull on the headlight once the motor is running fast enough to produce 12 volts. Once the headlight comes on, there is a latch circuit from the 12 VDC battery, this keeps the headlight on even if you stalled the motor. So you have two choices, one is to go to the very end of the connector that goes to your old regulator and either cut the three wires that come from your alternator and attach them to your new regulator, or what I did, tap the three phase wires from the alternator to the new regulator ( the wire from the Compufire is just long enough to reach-----it is a challenge as the harness is very close to the rear brake switch)
Since I have already installed one and reviewed my install, this is what I would do if I replaced my bike with yours;
#1 take the side cover off located above the alternator, exposing the alternator 3 phase wire connector.
#2 strip about a 1/4 inch of insulation off each of the white wires in a staggered formation , then solder the three wires from the new regulator, tape with rubber tape or silicone seal caulking. An alternate method would be to use 10 gauge insulated but splices, wire from the alternator and wire from regulator in bottom of but splice, then double over the wire going to the connector, this end goes into top of but splice, do the same for all three----------if you knew which wire pulls on the headlight relay you would only need to do one wire ( I need to test this, what should happen is if you connected positive to one of the black 3 phase wires, the headlight relay should pull in, that is with the alternator stator disconnected-----I need to prove this-not tonight)
#3 run both positive and negative output wires their full length, connect negative to frame ground, positive to a 30 amp weatherproof fuse holder, from the fuse holder go direct to battery OR
connect to 12 volt relay, from relay connect to battery. Use your tail light wire to drive the relay, connect other side of relay coil to existing frame ground.
#4 rubber tape original plug to old regulator----gives the option of connecting OEM regulator when you sell the bike
I guess if there is enough interest I could take some pictures and post them.