I already thought of that. I bought 3 different Carb's All of them did the same thing. Tried some NC Carb tune-up things I found on the forum like re drilling the jet to a smaller port and larger. Filling or blocking the overflow / breather tube. and several other things like adjusting the float and checking the inlet needle for a proper seat. None of them worked. As for the filter in the fuel line... To me that was a no brainier, of course I have one installed correctly with the flow. Broke the master link today well the clip that locks it in place, so waiting for that to get here before going any further.