R&D's Power Bowl, the cure for unpredictable carburetor performance, common in todays motocross bikes. With the advent of high performance 4-stroke engines, carburetor hesitation is a far too common occurrence. Temporary lack of fuel supply, caused by air pockets finding their way to jet passages, also cavitation in the accelerator pump, can quickly deflate a riders confidence in his machine. The ''R&D POWER BOWL'' is a sure fix for these problems.