It's definitely leaking out of the top AP hole in the top casting. I would open it up & get the kit (they're cheap) & just add the needle/seat and the new top gasket & reset the float level & replace the AP plunger & call it good without removeing the carb & soaking it & all that. I twirl the needle inbetween my thumb and forefinger to smooth the tapered neoprene part for a better seal & lube the bowl screws to make it less likely they will strip the alum casting if you are in & out of there repeatedly which you wouldn't be with this carb like you would with a carb that you were doing alot of jet changes but it's a good habit to get into. EDIT I would also lightly spray the bowl gasket with WD40 on both sides which helps preserve the gasket if you're back in & out of there several times