Yeh flooded mine a while back, lot of oil to change and a filter, finally figured out it was that nasty little spring clip holding the needle in, some replacement ones are angled in and sometimes hold the needle open or shut, the one that caused me the problem was also the one that shut off after a while and made the bike run on only 4 cylinders, so that made me look at the clip, couldn't figure out the flooding problem till that happened and I had a real good close look at that clip. Some from a spare set of carbs were a lot better, straighter in the angle it goes over the needle, gave it some room to work without the chance it will bind, bike is running great, I had thought it was the way I set up the fuel levels, checked and re-checked, adjusted, checked again, then the little light bulb blinked on over my head and I found that clip was "wrong", looked ok, worked now and again, just lucky I caught it stuck shut and the edge touching the side of that clip.