4. FUEL SYSTEM K-PIPE 125 Throttle Stop Screw MAIN JET/SLOW JETS/AIR SCREW/ THROTTLE STOP SCREW REMOVAL Remove the main jet, needle jet holder, and needle jet. Remove the slow jet Remove the air screw and throttle stop screw. CAUTIONS ! · Be careful not to damage the jets and jet holder when removing them. Air Screw · Before removing, turn the throttle stop screw and air screw in and carefully 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. CARBURETOR CLEANING Throttle Stop Screw Blow compressed air through all passages of the carburetor body. SLOW JET/MAIN JET INSTALLATION Install the slow jet. Install the needle jet, needle jet holder and main jet. Install the throttle stop screw and air screw. Slow Jet Main Jet · When installing the air screw, return it to the original position as noted during removal. · After the carburetor is installed, be sure to perform the Exhaust Emission Test. Install the float valve, float and float pin. Float Pin 4-9