Just installed it and I'm really happy about the fit and the trim sculpting of the tank. I have a question. I routed the fuel hose to the carb, per the instructions but it seems awfully queer. Has anyone else done it differently, as in taking a more direct route to the carb inlet, with good results? I'm suprised by the somewhat rough hewn nature of this tank. It's not what you would call, "polished" and many of the seams are thick and raised but the YZ blue color is an exact match, it doesn't leak and it fit perfectly. No fussing. I had a 2.8 gallon Clarke tank for my old YZF450 that was pretty tough to mount, but this IMS was no problem. I'll fill it up when the weather gets dry and get an exact measurement then. The instructions say there can be a 10% difference in claimed capacity to real world results. Pics are here http://smg.photobucket.com/albums/v518/MotoGoalie/Motorcycle%20Pics/ Just to point out the slim line of this tank.