Electronic control system for carburetor

Abstract

An electronic control system for a carburetor, includes: a transmission device 24, 25 linked to a valve 7, 8; an electric actuator 20, 21 for driving the valve 7, 8 ; and an electronic control unit 12a for controlling operation of the electric actuator 20, 21. The transmission device 24, 25, the electric actuator 20, 21 and the electronic control unit 12a are housed and held in a casing 10 mounted on the carburetor C . The ventilation means 72, 74, 74', 89, 90 for causing an interior of the casing 10 to communicate with the outside is connected to the casing 10. Therefore, it is possible to house the transmission device, the electric actuator and the electronic control unit efficiently in a common casing so as to downsize the electronic control system for a carburetor, and improve durability of the electronic control unit and the electric actuator.