Battery voltage meter sits at 0 while boat runs

[TownsendsFJR1300]

Keep looking, it certainly isn't plug and play....

That or have them repair what you already have.. Might be easier, you know yours fits, after re-conditioning they should be good for quite awhile..

[Yamaha115OB]

Okay,, received a new gauge. It has the fuel, lights and ground posts marked, three N/C marked posts, and a post marked B+. Do I assume that B+ is voltage...and if I hook up a battery with negative to ground and positive to B+, should the gauge show voltage? I can get the lights to turn on when connecting the battery to ground and the lights posts, and the fuel needle moves when I go to ground and many different posts, but I can't get the voltage to read at all.