Kick-up device for a secondary throttle valve in a diaphragm-type two barrel carburetor

摘要

A kick-up device for a secondary throttle valve in a diaphragm-type two barrel carburetor having a kick lever which is connected with a primary throttle shaft and has a cam portion and a follower lever which is connected with a secondary throttle shaft and has a cam follower portion wherein the cam and the cam follower portions are so designed that the secondary throttle valve begins to open when the primary throttle valve is opened beyond an intermediate angle such as 30 DEG -50 DEG and is finally opened up to a predetermined relatively small opening such as 5 DEG -10 DEG when the primary throttle valve is fully opened.