Patent ID: 7201144

Claim:
An operating apparatus of an engine having a throttle valve for regulating engine speed in a portable working machine, said operating apparatus comprising: a first operating device for operating the throttle valve of the engine in a range from a fully closed state to a fully open state; a switch for switching the engine between an operable state and a stoppable state; and a second operating device for operating the switch; wherein the second operating device is structured such that, when the engine is in the operable state, the second operating device is operable to set an operation limit position of the first operating device corresponding to a predetermined open position of the throttle valve, and to prevent the first operating device from moving from the operation limit position in a direction corresponding to a throttle valve closing direction, and wherein the second operating device is structured so as to allow the first operating device to fully close the throttle valve at a time of operating the switch such that the engine is brought into the stoppable state.