I have a 99 that has a slightly build motor with a newer transmision in it and I have added the back part of a TC on it an HD fairing and get right at about 150 per tank. you are either not getting it full or are super rich.
I don't deny the possibility that I'm not filling it full. This bike has a block-off in it that my other bikes don't have. I've already felt the need for a plate that holds back the boot on the handle... I'll have to get one.
However, the last time I filled, I put in 3.5g and the light was bouncing on and off. It's not running rich, but it is possible it's not running efficiently. I've only had this bike a few weeks, and after frying all the small ground wires while trying to start it (see my thread in the V92 section), I'm going over the whole bike. I'm sure it will run better after the timing chain, drive belt, filters, oil, and all, are checked and/or replaced.
It's good to know that someone's getting 140-150 before "reserve". That should get me through the southwest and parts of Canada just fine. It's also good to know that a full-dress bike gets not less then 150/tank. I'm playing with the idea of trying to mound a Don Vesco Rabbid Transit fairing in the bike. It's very nice but not considered light, and may lead to springs with a higher spring rate up front. But, that's another topic, altogether.
This isn't exploration or expedition range, but should be acceptable for a road machine. Thanks very much for the help.