If turning the idle screws out another 1/2 turn fixed your idle, then you were to lean. The idle screws are a minimal change so your probably still a littel lean, if you have removable air bleeds on the top of your carb. You can put a smaller air bleed in the most outside air bleed from the vent tube to richen your engine at idle alittle more. Otherwise your probably going to have a bog at launch.