| 摘要 |
PURPOSE:To make scavenging control equivalent to that in case of a carburetor type engine attainable, by reducing a fuel injection quantity when an engine is in a cranking state as well as a throttle valve is in a state of being fully opened. CONSTITUTION:An ignition plug 8 comes into a state of being made wet due to oversupply of fuel in time of starting and a misfire happens whereby when an operator conducts scavenging operation, a starting motor switch 27 is closed while a throttle valve 22 comes open to the full. Therefore, a starting motor shart signal and a detection signal out of a thottle full-open sensor 26 are inputted into an AND circuit 32. From this AND circuit 32, a fuel injection quantity decrement signal is emitted. With this, scavenging operation equivalent to that in case of a carburetor type enginge can be performed. |
