PWK40 CarburetorPWK40 Carburetor is designed to improve vehicles performance and achieve excellent results in various off road races. With a half moon shaped slide, the throttle response becomes more sensitive. a mid to high speed refueling device is built in for an aggressive power boost. Aluminum alloy with anodic oxidation treatment on the surface, which greatly improves the corrosion resistance, wear resistance, insulation, heat resistance and hardness of the