This spring I filled the tank as high as I could get it (gas was cheap that day). After a 10 minute ride and sitting in the sun for another 10 minutes gas started to flow out a small tube under the frame of the bike. I totally panicked and called the dealer asap. After a couple of questions he new exactly what I did and told me not to worry and burn off as much gas off as I could on the next ride, and to leave at least a 1/4 inch gap between the gas and the filler tube in the tank just below the cap. It also said it in the manual. How I missed that I dunno.