Alternator 3G Upgrade Wiring Diagram Question(s)

As far as the gauge wire, there is no such thing as too thick, as long as it's not too cumbersome to fit throughout the openings it needs to fit through.

Let's see here, I'll post the standard diagram and do some comparisons:

Thanks for the reply Brian,

I'm guessing it's grounded through the frame as well, it's truly a one wire hook up like it claims. I've read of a few others doing this upgrade (hopefully an "upgrade") but haven't heard of any horror/success stories in the boating world, many success stories in the auto world. I can say I really like the way it cleans up the engine compartment, removed external voltage regulator all together, which does away with a lot of wiring. I've been battling voltage spike issues since I've had the boat. I also installed Mallory 29371 Circuit Guard inline with the distributor feeds. All is ready to rock, just waiting on my battery cables which should be here friday. My fingers are crossed, I want to ski SO badly!

After replacing new module in my dizzy, removing voltage regulator, and updating to a 1 wire HO alternator, she turned over and ran great first turn of the key (what a great feeling). I get a constant 14.5 at the battery at idle and higher RPM's. Hopefully this will fix all the electronic issue I've been struggling with over the past couple years, time will tell.

Ryan.