May just be the bike. I get the worst mileage of any Interstate I have ever seen. JP has been all over it and nothing has helped with the mileage. When we were riding up north, I always took 1/2 gallon (at one time almost a gallon) or better than he did. I got worse mileage than Bird/Moonshine riding two up with luggage...Always have gotten worse mileage than others - that is why I am the one who picks the gas stops - I will go on reserve before anyone else. Always have - I reckon, always will.
I agree, check you petcock to make sure you are not sucking off reserve and if not, man, enjoy the mileage!!!!

Seriously, I have done EVERYTHING I can think of to up my mileage - but no go. Traveler is just a thirsty Interstate I reckon. Heck, I just figure it is about time for a smoke break anyway.....My petcock has been rebuilt, carbs synched.....no matter what I have tried, I just can't get the mileage that others do....Like I said, it is time for a pee break and a smoke anyway....
