rewireing outboard 1993 cobra bass boat

[garnettblue]

i just bought a boat and the 70 hp mercury motorruns but the tilt trim switch is broke and the wireing up to the trolling motor outlet isnt working and i dont know if the bielge pump works or not basically i want to re wire the console with fresh rocker switches and ignition and what ever else i may need on the dash like the live well aireater on off switch and maybe a radio. is there a book any one can recommend on basic boating wireing . can someone run down the basic wireing diagram with me. i already started running wires down . i know that i have a brn wire and a blk wire going too the bielge pump and a couple blue wires going to the front of the boat i think their for the nav lights . appreciate any help how do u test the bielge pump? i got a lot of questions thanks blain

[redtech]

at helm: brown bilge pos.
blacks are grounds or neg.
red battery pos.
yellow/red start
light blue dash or instrument lights
blue nav lights
pink fuel sending unit
gray tach
green trim down
blue trim up
red with stripe fused battery pos
purple ignition pos.
add what ever the boat builder had that day
but engine wires also change the colors for fun
???why do boat shops charge so much ??
try to only change the wiring that is not working and pull it out when done leave the rest there till its broken

[Ike]

Here's a list. For your project I would suggest The 12 Volt Bible because it is just 12 V.

You can get these at Amazon or most book stores, or through my web site.

Boating Magazine's Powerboater's Guide to Electrical Systems by Ed Sherman
Boatowner's Illustrated Handbook of Wiring, by Charlie Wing
Your Boat's Electrical System, by Conrad Miller and E. S. Maloney
Boatowner's Mechanical and Electrical Manual, by Nigel Calder
The 12 Volt Bible, by Miner K Brotherton and Ed Sherman
Sailboat Electrical Systems, Don Casey, 1999 International Marine