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I am assuming it is because there are gauges up top and down in the cabin. I assume the Y harness helps "split" the signal that comes from the plug/harness in the "breaker plate" and helps send it to both sets of gauges. New to I/O's and fly bridge stuff so I could be off by a mile...

Hey guys, Slowly trying to bring a 1980 Searay SRV255 Sedan Bridge back up to speed and I have a wiring question. She has twin 1980 470's with serial #'s starting with 55........ I have one engine up and running but the second engine has a wiring harness that scares me to death. It...

Thanks Doctur! I will take a look this afternoon when I get to the house. I was thinking short of some kind so I will check out the resistor wire and make sure she is not corroded, broken or disconnected. Thanks again for your help.............

Hey guys, Stumped on this one. The engine (1980 470 Mercruiser) will only run if I keep the key turned to the on position. Installed new plugs and wires along with a new fuel pump. Engine fires right up but cuts out along with gauges when you release the key. Any thoughts? Betting it...

Perfect! Exactly what I needed. Also, any thoughts on a multi-bank charger to keep the batteries up while on the trailer at home? How would it wire in if you did go with two switches and an isolator? Many thanks!

Hey guys, New to the forum and to bigger boats so this may be an elementary question to most. Please bare with me. Purchasing an older SRV255 and I am pondering the battery set up. I have the luxury of setting up the batteries/ battery switches any way I would like to and was looking...