MAXIMIZE THE POWER WITH GOOD JETTING. THE AIR/FUEL MIXTURES NEAR 10:1 ARE RICH, AND THE AIR/FUEL MIXTURES ABOVE 14:1 ARE LEAN. THE BEST POWER OF THESE 3 SHOWN IS NEAR 13:1 AIR/FUEL MIXTURE.
ALL THESE RUNS WERE MADE WITH A BONE-STOCK RUCKUS AND EITHER STOCK INTAKE, OR RESTRICTING THE AIR-FLOW ENTERING THE AIR BOX.