4. FUEL SYSTEM K-PIPE 125 Carburetor Cap THROTTLE VALVE DISASSEMBLY Loosen the carburetor cap and remove the throttle valve. Throttle Cable Disconnect the throttle cable from the throttle valve. Throttle Valve Remove the throttle valve, spring and carburetor top. The carburetor top is an integral part of the throttle cable assembly. The top can't be separated from the assembly without causing damage to the cable. Remove the jet needle by removing the needle clip. Needle Clip Throttle Valve Check the jet needle and throttle valve for wear or damage. Spring Jet Needle 4-5