Quote:
Originally Posted by bigdog
DaveR you're always there, excuse the pun, 'bail me out' ! 
You stated "The black wire on the red cable might be for the bilge pump"...
Would that be attached to the Positive terminal ?
Also, what do you mean by a 'bonding wire ' ? Never heard that term? |
Trace the black wire, if possible. If that proves impossible, check for continuity between it and the negative terminal. If there is no dead short to the negative terminal, touch it to the positive terminal and see if it makes a big spark. If no big spark, it's probably supposed to be connected to the positive terminal. This would be a good time to mark it...
Bonding wires are used to tie all the metal that touches water to the negative battery terminal in boats. It's important to keep all the metal at the same electrical potential to help prevent galvanic corrosion. Green or green and yellow wires are typically used for bonding.