TO ENLARGE CLICK THE PIC THEN CHOOSE "X3" along the top edge of the pic. Click it again to go back to normal size. 1973 Benelli 650 wiring diagram

What Benelli calls the "mini terminal box"

Alternator part code, same as on 70's BMW R Series

Brushes on left D- terminal are grounded, ones on right side DF terminal are insulated from ground by fiber washers.

Previous ground cables were inadequate, I added these much larger ones for a good solid ground.

Old rotor looks like it's spend some time in the rock crusher. Water damage? I have no idea, but it's ugly.

Pretty new rotor at a great price from Euro Moto Electrics, web site http://www.euromotoelectrics.com