I have a 49cc mini quad that keeps overflowing the carb bowl and then fuel comes out the overflow tube. I tried adjusting the float but no dice. So I broke down and bought a new carb but it still has the same problem. If I restrict fuel flow with the fuel supply valve it does better but only for a minute or two before it either floods out or starves.
mmmmmmm sounds like a case of the cheap chinese parts problem.a new carb should be fine really have a look in the needle seat to amke sure there is not any maufacturing swarf.this will stop the needle from seating properly and therefore allow fuel past the seat.
adam bike doctor(of milton keynes motorcycle centre)
October 2010
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