HELP! Wiring Schematics for a 1978 Bayliner!

[Jess1129]

Hello, i have been working on completely remodeling from the floor up a 1978 Bayliner 2000 Admiralty. And unfortunately, the only thing keeping it out of the water at this point is the wiring. I replaced the dashboard and had thought at the time of taking all the wiring out i put it all back together, the way it was taken out. Now- none of the hookups in the dashboard are working correctly So- i'm hoping someone has a wiring schematics chart or some type of into as to what wires might go where?

 

[Silvertip]

Re: HELP! Wiring Schematics for a 1978 Bayliner!

Check the Stickies at the very top of this forum (not this page). There is a Generic Boat Wiring Diagram there that shows how the vast majority of recreational boats are wired. Wiring for the engine is covered in the service manual for your engine. What specifically is the problem?

Every gauge except a speedometer, needs +12 volts with the key in the RUN position and a ground to operated. A fuel gauge has a wire (usually pink) on the "S" terminal that comes from the sender in the tank. Other gauges like temperature, trim, oil pressure, etc also have a corresponding sender wire. Voltmeters need only +12 volts and ground. Typically the internal light on the gauges get power from the NAV position of the NAV/ANC switch.

Power for the gauges comes from the "A" (accessory) terminal on the ignition switch for an outboard, or the "I" (ignition) terminal on the ignition switch for an I/O. Ground is ground -- wherever you find it but ultimately the negative terminal on the battery.