Re: 9.9hp 4 stroke leaking from carburetor
Usually when a carb is leaking fuel it is due to the needle valve not being able to close all the way. This is either because there is something stuck in the needle seat or the float is not able to push the needle far enough into its seat to stop the fuel flow when the bowl is full. Usually a good cleaning of the carb, especially in the needle seat, will take care of an obstruction. If it is due to the float, you should get a new float and might as well at that point just rebuild the carb to prevent any other near future issues with it.