A portable handheld apparatus such as a brushcutter, blower or the like has a drive motor and a throttle lever (2). The throttle lever (2) is pivotally journalled about a rotational axis (3). The throttle lever (2) acts on an actuating device for controlling the drive motor. In order to make possible a simple adjustment of the actuating device, it is provided that the throttle lever (2) has an operator-controlled lever (6) and an actuating lever (5). The operator-controlled lever (6) can be actuated by the operator. The actuating lever (5) acts on the actuating device. The relative position of the actuating lever (5) relative to the operator-controlled lever (6) is adjustable.

A portable handheld work apparatus has a drive motor as well as an adjusting element for controlling the drive motor. The work apparatus has at least one actuating element. A movement of the actuating element is transmitted to the adjusting element via a transmitting unit. A good operator control is achieved when at least one transmitting characteristic (49, 50; 89, 90; 309, 310) of the transmitting unit runs nonlinearly as a function of the actuating displacement (s) of the actuating element.

An operating apparatus of an engine in a portable working machine improves an operability of a throttle lever while preventing a Run-on phenomenon or the like. The operating apparatus is provided with a first operating device for operating a throttle valve of the engine in a range from a fully closed state to a fully opened state, a switch for switching the engine between an operable state and a stoppable state, and a second operating device for operating the switch. The second operating device is structured so as to regulate an operation position of the first operating device at a time of operating the switch such that the engine is brought into the operable state, and 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.