| 摘要 |
PURPOSE:To surely supply a rich mixture to an engine, when it is started, simplifying constitution, by providing a switch, interlocking to a starter switch, to be interposed in a power supply circuit between a heat generating means, actuating a choke valve, and a generator. CONSTITUTION:A choke switch 8, interlocking to a starter switch 7, is provided interposing between a heat generating means (positive characteristics thermistor) 9, automatically opening and closing a choke valve, and a power supply line e2 of a generator 1. The choke switch 8 is turned off, when the starter switch 7 is turned on, while turned on when the starter switch 7 is turned off. In this way, since voltage of the generator is not applied to the heat generating means of a carburetor by turning off the choke switch when the starter switch is turned on for starting an engine, the choke valve is not closed before the engine is actuated, and a mixture of high concentration can be supplied.
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