The British Seagull® Amal Two-Jet Carburettor Throttle Valve Piston locates with the throttle cable and regulates the fuel and air mixture as the throttle lever is open and closed.
The groove on the side of the throttle valve piston locates into the mixing chamber body where the valve piston locating screw prevents it from rotating. The throttle cable locates into the middle of the throttle valve piston to be pulled up and down when the throttle lever is opened or closed.
This part is suitable for all British Seagull Outboard engines fitted with the Amal Two-Jet Carburettor including: AC, AD, AHC, TC, TD, THC, WC, WD, WHC, S, WS, WSC, SP, SPC & WSPC.