I have a 4 cylinder engine, can you tell me what air filter I need? That's about the same thing you are asking. What brand engine do you have? Is it horizontal or vertical? Are you looking for the throttle linkage? Are you looking for the choke linkage? Are you looking for the governor linkage? Are you looking for the engine or unit control linkage? We have no idea what you are talking about, so no one can help you.