| 摘要 |
PROBLEM TO BE SOLVED: To easily minimize fuel supply of a working machine when turning off an ignition device. SOLUTION: This working machine is driven by a spark ignition engine. The machine is provided with a carburetor 9, a first regulating device for controlling an engine output and a second regulating device 3 for tuning off an ignition device. The first regulating device has a gas lever 2, a throttle valve 9a provided within the carburetor 9 and a coupling element 4 for operationally coupling the gas lever 2 with the throttle valve 9a. In this kind of working machine, the operational coupling of the gas lever 2 and the throttle valve 9a can be released by the second regulating device 3 and the throttle valve 9a is automatically closed by a return spring 9b in the coupling releasing state.
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