Every 'modern' bike has a multi-circuit fuse box, doesn't leave one guessing which element caused the one fuse to blow.
As a minimum these days I use a 15A on the common lead and a 5A in the circuit to the coils on the EI. Since the common lead goes directly from the battery to the single point on the frame, from which all other common wires originate, I don't see how the frame is still energized if the fuse blows.