An ignition controller for an internal combustion engine provided with a slide-valve type carburetor (1) includes a throttle-position sensor (20) for determining the throttle position of a sliding throttle valve (6), and a control means (51) that controls ...

The shutter system consists of a series of shutters (20a) controlling the flow of a fluid through ducts, each of which has a cavity (1010a - d)to receive the shutter in the open position so that it does not obstruct the flow. The shutters are operated elec...