hi fishraiders...can anyone out there tell me the size of a fuel tank in a 1982 83 bertram 25..i was assuming they were a standard tank of 500lt..i just repowered the boat & put in a sender unit whitch gives me fuel in % & i have to calibrate the gauge...i done a measure on the tank lengh bredth ect & came up with 380lt...can anyone help here...rgds gazza