| 摘要 |
A carburetion system is disclosed for preventing misfires of an engine during gear changes. The system includes a carburetor idle port and, additionally, an idle and slow port positioned near the throttle valve. Both ports are in communication with a idle and slow fuel passage. A valve controls the entry of air into the slow fuel passage during gear changes. The valve is opened by a circuit which functions to detect the concurrence of (1) the pushed-down position of the clutch pedal, and (2) the idle opening position of the throttle valve. A timing device is included for closing the valve a predetermined period of time after the clutch has been pushed down and the throttle valve has assumed its idle opening position.
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