Fuel guage come on with key?

[CJ7Rob]

Anyone eliminate the fuel guage switch, andmake it so it just comes on with the key? I want to see my fuel level when I start the engine or turn the key on. I don't want to have to flip a switch and remember to shut it off. Boat is '89 204c Overnighter, Thanks

 

[SkunkBoat]

Theres no reason why you can't as long as you can find ACC power(purple wire?) from the switch and it isn't already overloaded with too many things( dash lights, compass light, etc)

Some boats have on/off switch, some have momentary on, some have Main/off/Aux

 

[Ky Grady]

My '04 comes on automatically. Only time I use switch it to change sending units.

 

[Parthery]

Back in the late 80s the fuel gauges were separate from the speedo. My 190 had a fuel switch as well. I rewired it to an accessory lead off the key. Worked fine and I just left the toggle switch “on”.

 

[Ky Grady]

My bad, didn't catch it was a late 80's boat.

 

[CJ7Rob]

I want to try to wire it with the key on, and then use that switch for something else like accessory lights, Thx.