[McGillicuddy]

Ditto what Rhody and Big Lew said. Calder's book is the best. I also picked up Ed Sherman's book "Powerboater’s Guide to Electrical Systems" which is also solid and maybe easier to grasp. It's available in the public library in San Diego County.

I made a schematic when I rewired mine.
If I can get a good image of it, I could probably e-mail it to you.

I pulled every thing except the ignition, fuel and tach wires.

I'm using the old switches for now, but every thing has fresh wire 16ga or bigger and all tinned Ancor wire w/adhesive lined heat shrink terminals. GenuineDealz.com is the best source for wire and terminals. Get a decent ratcheting style crimping tool and don't even mess with terminals from Home Depot and such. They are all weak.

Take a look at Blue Sea Systems for battery switches and acrs, fuse blocks, bus bars and distribution panels. Good stuff and great technical support. Their website is a great source of info, too.