Okay, My carb on my Kawasaki FH680 keeps cutting off when I open the fuel valve. I took the carb apart cleaned everything, checked the float to make sure it wasn't sticking, all the jets are clear, fuel pump is good. As you can see I'm out of suggestions! When I start the engine it'll run perfect but after like 20 seconds it floods the carb and cuts off. i can even start it up and when it's about to cut off I'll shut the fuel supply off and it'll run good but the moment i open the fuel the supply up after like 10 seconds it'll cut off and flood the carb. Has anyone ever had this issue and if so how did you fix it?