Instead of starting a new thread I thought I would pose this question here. I have experienced and witnessed just the opposite problem. Why would this carb on a kt100 pump too much fuel? I have had this problem recently and I have witnessed other racers this season have a situation where the motor will not start without completely closing the needles because it is flooded, or they have to run much leaner settings just to get it to run. It appears as if the needle isn't closing and there is enough syphon/pressure effect from the fuel tank that it is completely filling the carb with gas. When you go to start its already flooded. I can't speak for others but I usual run around 10-12 psi for pop off which should be enough to close the needle, no? Any thoughts?