Will a GSXR 1300 'busa regulator/rectifier work when replacing the stock F3 R/R? The 'busa one has the five wires and looks just like the 600 & 750 R/R.

 

id imagine its the same thing, almost any sportbike will work, helps if they have wiring pigtails coming out so you can just connect right wire to right wire

 

It has the wires coming out just like the 600 does.

 

Yeah, you'd have to look at the hayabusa wiring diagrams and compare the wires to the F3 diagram, then either build connectors or solder it right on. If you're buying it used, it would be a good idea test it per hayabusa manual spec to avoid problems.