5. FUEL SYSTEM Mongoose/KXR 90/50 Spring Washer O-ring CAUTIONS! · Be careful not to damage the jets and jet holder when removing them. · Before removal, turn the throttle stop screw and air screw in and count the number of turns until they seat lightly and then make a note of this. · Do not force the screw against its seat to avoid seat damage. · Be sure to install the O-ring in the reverse order of removal. Air Screw Throttle Stop Screw Spring Main Jet Needle Jet ASSEMBLY Reverse the "DISASSEMBLY" procedures. · When installing the air screw, return it to the original position as noted during removal · Refer to the "CARBURETOR IDLE SPEED" section in chapters to perform the idle speed adjustment. · After the carburetor is installed, be sure to perform the Exhaust Emission T t Needle Jet Holder Slow Jet 5-13