I'm posting this to give anyone who's interested in my experience with getting my 68 Bonneville wired to Single Point Grounding.
First, why did I do this?
1. I didnt want to grind off all the grounding points on my bike for the ground wires (6 or so different points). I just had my frame powder coated!
2. From what i understand, positive grounding encourages corrosion of the grounding points--a major problem for electrics.
3. Simiplification. I know now exactly where my ground is. Its in one spot!
I ran new 14 guage red wire from all my components that either previously didnt have one (e.g. tach lights, horn) or were grounded to the frame. It was very messy at first and I wasnt sure if i was doing the right thing. But, once I'd cable tied it all up it looked fantastic. Youll see in my pics the red wires are not taped. I will probaby tape it all up once the bike has been running a few months and i know the electics are solid. Right now all the lights work and im getting power to the ignition system. So, i should be good to go once i get the engine in and hook up the alternator.
Would I use this approach again? Absolutely. If you have the time I definately recommended this approach.
I got all the info I needed from this excellant paper from GAMBA:
P.S. heres a few pics but you can see my entire restoration pics here: