How to decipher wiring diagrams?
 

I'm trying to figure out how to read the wiring diagrams.

When it says "Bilge Pump(Brn+Brn/Wht+GND)" that should mean three wires right? A brown, a brown with white stripe, and a ground?

Then what does "Blower(Yllw-14+GND)" mean? Does the 14 represent gauge or a color code (yellow 14)?

Last, are there wiring diagrams for the motor itself out there? I'm trying to figure out what all the wire color codes at the starter are.

Re: How to decipher wiring diagrams?
 

I believe you're right on the first one. If I still had my boat at the house, I'd check for you. I'll check next time I'm down at the marina.

The second one, is yellow colored 14 gauge wire and a ground. I believe they labeled wires that were a different gauge than the standard wires they normally used (as a way to tell them apart).

There are mercruiser wiring diagrams, in the service manuals, which you should have access to. It might take a little bit of searching, but I believe it's in the electrical section. Or it could be in the ignition section, I can't remember which. :)

Re: How to decipher wiring diagrams?
 

Thanks! I just spent an hour pouring through them and I think I found everything I need to figure out the entire 'non-Mariah' portion of the electrical system. I really wish there were detailed diagrams out there on how all the Mariah accessories are supposed to be wired in these things. I get confused on how all the three position switches are supposed to operate and I have a few hanging wires.