4. FUEL SYSTEM K-PIPE 125 THROTTLE VALVE INSTALLATION Set the needle clip on the jet needle clip. Standard position: 3rd groove from the top Install the jet needle on the throttle valve. Install the retainer on the throttle valve and secure the jet needle. Install the throttle cable to the throttle valve while depressing the throttle valve spring. Insert the throttle valve into the carburetor, aligning the throttle valve groove with the throttle stop screw. Install the carburetor top onto the carburetor. After installing the carburetor and throttle valve, perform the following adjustments: - Throttle grip free play (page 2-3). -Carburetor air screw adjustment if the carburetor was overhauled or cleaned. 4-6