Originally Posted by bob_t

When the needle starts to "swing" around while boating, you had better be thinking about getting fuel. I believe this is the same experience that 99.9% of everyone else with a Fountain has, or will admit to.

Originally Posted by mcprodesign

Check it when the boat is on the trailer

or at WOT..

that is the only time My fuel guage on my 27 is accurate

becuase that is when the boat is level..

And it is pretty accurate..

Just check it before you launch. I know you are not burning 60 Gals of fuel in one day .. or are you ??

Originally Posted by MILD THUNDER

What about those sending units that livorsi and the others sell that are adjustable with screws? The ones without the float arms? I mean, even with a tank being a weird shape, i would still think there has to be a better way to measure the liquid in the tank. What good is a fuel gauge if the only reading you get is FULL or empty and nothing in between.

Originally Posted by qaberdeen

Not to sure, but my mate has a 27 fountain,and he has a 60gallon tank which was/is standard with the 27's i think... we've run out of gas once or twice with the needle reading 1/2 full..lol now we just stop for gas any time we see a gas station

Originally Posted by bob_t

My experience will all of my Fountains is that it reads full, when sitting in the water, until it is actually near empty. When the needle starts to "swing" around while boating, you had better be thinking about getting fuel. I believe this is the same experience that 99.9% of everyone else with a Fountain has, or will admit to.

Also, when filling your boat with fuel, you need to listen to what you hear at the air vent. When you hear a gurgling sound you better slow down the gas pump or you and the boat will be wearing fuel! They are prone to blow fuel out the air vent and sometimes out the fuel fill, if filling too fast or getting close to full. More than once, my boat looked like a NASCAR car pulling away from the pits with fuel streaking out the air vent as I started down the road, just after "filling" the boat's fuel tank (s).

Originally Posted by carcommander

I was informed that they all suck. When I am running if the needle moves off full at all then I have half a tank. Mine has a 69 gallon tank. I just fill the tank when the needle starts moving. If it shows half a tank then you have about 15 gallons left.

Originally Posted by bcfountain

my 27has a 63gal tank.i know this because i drained it empty.when the gage is @3/4,its at half tank.at 1/2 tank gage reading ,it is at 1/4 tank fuel,if the gage goes passed 1/2 gage i am almost empty.its the way the tank is built and how it sits in the boat.i have heard that some 27 fountains have 70gal tank.

Originally Posted by pitts1313

How did you drain your tank? I undid the cut off valve in the engine compartment. I can only get 90 of the supposedly 118 gallons advertised out. I know the tank was full.