Correct gas tank wiring?

[ParallaxBill]

Guys, my gas gauges are wired but not connected to the battery. My boat is a 73 Glassmaster Tarpon, 165 Mercruiser with twin 12 gal tanks in the seat boxes. Both have gauges mounted on the tanks with two wires each coming off the tanks.

How do I wire them to the battery without blowing myself off the boat.

 

[JUSTINTIME]

Re: Correct gas tank wiring?

one is ground one is the sender
u need the guages to wire them up

 

[Dunaruna]

Re: Correct gas tank wiring?

[colour=blue]The sender wire is the one in the centre of the insulator, the other wire is the ground.

 

[Bondo]

Re: Correct gas tank wiring?

Ayuh,...... And None of it is Wired to the Battery.........

There should be a Ground wire attached to the Rim of the sender,....
That 1 is routed back to the Engine Block for Ground.....

There's the 1 in the center of the Sending Unit, that Dunaruna mentions,...
That 1 goes to the "Sender" stud on the Gauge,......

The Gauge is wired to the Battery from the (+) stud, or "Ign" stud on the gauge..........

And,.....
There Should be a Bonding Wire attached to the Tank, Somewhere, that Bonds the Tank to the Ground Plane of the Boat,......
In other words,.... Run this wire to the Engine Block as well...........