I've had this overfill problem a couple of times when I've overfilled the tank. Fuel will start dripping from under the bodywork when I fill past the gas cap neck and the bike is leaned a little far over, usually from a gas station where the ground is not level. I also have an adjustable sidestand and my bike may lean a tad further than stock. It's only happened a couple times and I always assumed it was from overfilling it, but when I removed some bodywork for something else I noticed the gas stains and overfill tube. If it's something simple like overfilling the tank, shouldn't the excess come out from the tube and then straight onto the ground? Might I need new gaskets? The tube seems fine and it is clamped tight?