More information about O.S. Engines Carburetor 21JS 7mm Insert Speed 21 V-Spec II OSM23818080
O.S. Engines slide valve mechanism is housed inside of a rubber boot to protect it from dirt. Ball end throttle arm connection reduces play in throttle linkage. Adjustable - Mixture, idle mixture, and throttle stop. Cast aluminum carb body.
Ball Link To Operate Slide Valve With Servo
Outer Diamter carb to engine mounting sleeve: 15mm (0.59")
Outer Diamter carb to air cleaner mounting sleeve: 14.5mm (0.57") with 16mm (0.63") lip
Carb throat bore: 7mm (0.28")
Carburetor height: 54mm (2.13") including needle valve