I've had fuel coming out of the overflow tube on my 2005 TE450 when I'm stopped, engine off, petcock open. I always have to close the petcock to stop from happening. Naturally, I then take off to ride and forget to open the petcock. That's my own personal problem. Anyway, I'm about to order a new seat, o-ring, float (just in case and while I have it apart), needle, fuel screen and needle clip from Sudco. My question - Doesn anybody know the seat size for a 2005 TE450? There are 5 choices on for the seat part number. The guy from Sudco said I had to take it apart and the size should be stamped on the seat. I don't have it taken apart right now and am at work. Wanted to try to order today. Also, is this a downdraft carb? The guy said it is if it is set at a 45 degree angle as opposed to straight up and down. Thanks for any help you can provide.