Sponsored Links (Register now to hide all advertisements)
Is it an original carb or a Tillotson? If it's a Tillotson, Sometimes the carb body itself can warp over time because of the aluminum casting and cause it to leak through the gasket.
I agree with the guy above who said it's probably the float adjustment and/or bad needle valve.
I just had to do the same thing to mine!!!!
Good luck!