Mixing Modifications- Combined Lighter 6g Roller Weights and Stiffer Blue Clutch Springs The bottom curve of these graphs is a light-throttle acceleration. The stiff clutch spring has the clutch locking at ALMOST the same RPM (5500rpm) as the lighter 6g rollers begin to change gearing(5800rpm). **If the springs are too stiff (or maybe clutch
Met II Increased Speed 12% with Modified Drive Face 1.2mm from Standard Drive Drive Plate Modified by grinding & filing 1.2mm off from the Drive Plate at the center lip, and adding a washer behind the Variator ramp plate to relocate the bushing and allow the nut to tighten without deforming the splines.
Ruckus AirBox Mods vs Stock w Needle Mod MPH -STOCK EXHAUST 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 THOSE SHOWN IS NEAR 13:1 AIR/FUEL MIXTURE. ALMOST ALL OF THESE RUNS WERE MADE WITH A BONE-STOCK RUCKUS (#75 MA
NR Magic wCDI vs Stock and other Mods -STOCK RUCKUS (lowest power curve- GREEN line), -AIR BOX MODIFIED AND REJETTED (2nd lowest curve- BLUE line ), -AIR BOX MOD, REJET, 6gm ROLLERS, YOSH EXHAUST (2nd from top curve- RED line) -AIR BOX MOD, REJET, 4.5gm ROLLERS, NR MAGIC VARIATOR, YOSH EXHAUS
JDJetting AirBox Cover Mods 3 5 7 NoFilter The needle tip diameter affects the main jet size because the fuel must pass by both parts before entering the motor. A larger needle tip results in main jet sizes increasing by 2-6 steps over a small tip needle. In the extreme case, no main jet would be
Ruckus JDJetting RPM vs time for Stock Clutch THE FIRST STEP ON THE LEFT EDGE OF THE GRAPHS SHOW THAT THE STOCK CLUTCH ENGAGES NEAR 3500-4800RPM. THE ENGAGEMENT RPMS ARE HIGHER WHEN MORE THROTTLE IS APPLIED, BUT ARE NOWHERE NEAR THE RPMS WHERE THE MOTOR IS MAKING BEST TORQUE OR POWER. *****THUS, THE
Ruckus Variator Speed vs RPM - Accelerating with Different Throttle Positions LOW POWER/LOW THROTTLE RUNS SHIFT EARLIER THE HIGH POWER/THROTTLE RUNS The Previous Test Results show that the Centrifugal clutch is already locked at 3500-4500rpm, and the graph above shows the VARIATOR will BEGIN to shift the belt drive ratio anywhere b