Yamaha wiring diagram 6Y5-83540-20-00

[davetharrison1]

I have a Yamaha t50tlry year 2000 4-stroke. Can anyone tell me how to wire the 6Y5-83540-20-00 gauge I just purchased. This boat had the Yamaha engine installed before my purchase. A wiring diagram would help. Plenty of "loose" wires were left under the center console.

Thanks for your help....daveharrisonjr@yahoo.com

[boats.net]

Blue = light
green = tach
black = ground

[davetharrison1]

Thanks for the response....

Do you know where I can get a wiring diagram for the oil and water sensor hookups, also?

or a complete wiring schematic/diagram for the gauge to outboard?

Thanks...........dave

[boats.net]

Maybe this is what you want.
6Y5_704 Wiring.pdf

[davetharrison1]

Thank you for the wiring Diagram

The folks that swapped out the old engine and installed my Yamaha engine did not replace the wiring with the Yamaha wiring harness.

So... I have my work cut out figuring how to hook up the new Gauge. The new gauge has tach, water and oil lights. I wanted to hook up the new gauge for safety purposes.

The existing tach does work, and there are "rogue" (not connected single wires) under the dash marked "oil" and "water" or "temp"... What a mess.....

Thank again for your help.... Dave Harrison