I thought my fuel gauge worked until i ran out of gas in the gulf of mexico. does anyone have any suggestions on how i might fix this. Bayliner trophy 1989, bought it 2 months ago and was told it had a 90 gallon tank but it will only hold around 45. I am paranoid now and came in to fill up because we wanted to go farther out and didn't trust the fuel gauge, felt stupid when i discovered i had only used 4 gallons. this was on a calm day, when i ran out of gas we were battling 6-8 ft swells. Thanks