Yamaha gas guage not working

[TomGlenBurnie]

Hi again Jay. I have an ET degree, and 30 years experience.
.
You have a grounded wire, between the gauge and the tank.
[ or someone before you reversed some wires somewhere.] May be easier to replace those two wires.
You do not need thick heavy wires, just nice strong insulation.
.
The gauge, thinks the tank is full, because, all the current is flowing to ground [-].

if questions tom granger c ell 410 627 05504.

[Ghostle]

On my sea hunt I had problems with my gas gauge, my son, an electrician found out the crimped connectors were not done right, one wire Pulled right out of the connector.