Some good info in this thread. I have one suggestion; don't wire the positive wire DIRECTLY to the positive battery cable nor the negative wire from the stator directly to the negative side of the battery. IF the battery connections corrode a bit, the contacts will suffer. They do tend to corrode. Coat the terminals on the battery with dielectric grease and leave them alone. Connect the positive wire to the lug on your starter relay where the positive battery cable connects. This way you can leave it alone when changing the battery and it is essentially connected to the battery. Similarly, connect the negative r/r lead to the place on the motor or frame where the negative battery cable attaches. As far as connectors, you can solder/shrink wrap everything and then you won't have to worry about connectors failing or corroding. If you need to remove the r/r for some reason, just heat the solder and pull it off. Critical connections on a bike are best soldered in my opinion; this opinion has been built in the vintage bike world where wiring harnesses are a prime reason for sitting by the side of the road.
