I have just resurrected my 2003 Palm Beach 175 CC from a long sleep. The on board fuel tank was drained and fuel lines were secured for the last 5 years. I have just purged the tank again and purged accumulated moisture with a hand pump the best I could. I've added a clear sump filter/water separator in line and was able to visibly see and remove additional water until I had a clear indication. I originally added 6 gallons of fuel to the tank for starters to test run and also gauge checks. Engine run was fine but the gauge read slightly below "0". I then checked all grounds and cleaned and reattached gauge, still below "0" but it does flinch when the ignition is turned ON. Next I removed the sending (Wema) 6" and slid the float up and down, the gauge responds accordingly. Reinstalled the gauge and added 8 more gallons of gas, switch ON, still reads Empty. Again I removed the sending unit and filled a jar with fuel and submersed the unit to verify the float travel, good indications. Reinstalled then changed dashboard indicator, still empty indication. I then called the original dealer and he thought the 175cc came with a 30 gallon tank so I added another 6 gallon. Sure enough the gauge came up to just under 1/4 tank which made me confident that the system is working but a little heavy on the Reserve fuel indications. Now back to my original hope and question; Is there a Gauge on the market that can be self adjusted in order to tailor the indications to fit my requirements? My gauge is a standard American resistance 240-30 OHM Gauge