Join Date: Apr 2002
Location: Dandridge (Near Knoxville), TN, USA
Re: Electrical Question on FD Unit
BMW does not use frame grounds on their bikes or cars. They wire every electrical device not on the engine with separate grounds (brown wires) Look for a ground terminal somewhere with brown wires to attach a new one. There is one right behind the battery. Or for a small load such as the one you are working on, find a brown wire to another device and splice into it. For anything above an amp or two, you should find an existing tap point or go direct to the battery to avoid ground loop noise problems.
I don't want to achieve immortality through my work...I want to achieve it through not dying.
EX: '01 Black LT, BAT BYKE (Totaled at 110,000 miles)
IBA SS, BB, BBG, 10/10ths.
No bike now, but maybe in the future.