I have a bad diaphragm on this but I don’t know what to call it. I took it to auto parts store and they could not find it in the system anywhere. What is it and where can I find a replacement? I believe it is part of the start/idle circuit for fuel delivery whic( strokes on the exhaust stroke of the engine. sorry, did not know I could not add attachment. It is a pump with bad diaphragm on the passenge4 side below the Nikki carb.
thanks for any input.
Mike

You should maybe try re-posting your description and maybe a picture in the first generation section for a wider audience.