This is a brand new 650. The first 50 miles I had no problems but my second weekend is when this problem developed. When I pull to a stop, lean the bike on the kick stand, fuel pours out of the overflow tube. If I stand the bike straight up, the leaking stops. The bike runs good and I didn't have any of the out of adjustment float symptoms I've experienced on other bikes. Also, it didn't do it everytime I put it on the kick stand. I think it leaked about 70% of the time. Any idea's?