ACCELERATOR OPERATING DEVICE

This apparatus comprises a thumb lever 10 which is supported rotatably around an axis of a shaft portion 11, a return spring 13 to urge the thumb lever 10 towards an initial position, and a position sensor 20 which detects a rotating angle of the thumb lever 10 around the axis of the shaft portion 11, and outputs electronic signals as information of the accelerator position while the position sensor 20 detects the rotating angle of the thumb lever 10. In this manner, a drive-by-wire system is adopted to an accelerator operating portion of motorcycles etc. without losing the steering operativity.