Don't worry about the fuel level. Just fill it up and ride it around. When it starts to feel like it doesn't have any power and is missing out a bit, switch the petcock to reserve and find a gas station cause you have about a gallon left. Once you experience what the bike feels like when it is running low you will know what I mean. Should get quite a few miles on reserve, plenty to find a gas station.
But to answer your question, sorry don't know.