Avanti 43Cc And 49Cc 2Stroke Carburetor 43Cc 49Cc And 52Cc 2Stroke Carburetor This Is An Upgrade From The Stock 12Mm Carb This Carb Has A 3Mm Larger Port And Has Adjustable Airfuel Ratio Screw This Carb Fits The Scooterx Dirt Dog Xracer Powerkart Baja Go Kart Skaterx Gas Skateboard ..