Patent ID: 8245588

Claim:
A structure for disposing a shift actuator in a power unit for a saddle-ride vehicle comprising: an engine main body; a crankcase forming a part of the engine main body; a crankshaft rotatably supported by the crankcase; a transmission mechanism disposed in a course of power transmission from the crankshaft to a drive wheel and installed in the crankcase; and a shift actuator which drives and controls the gear-shifting action of the transmission mechanism and which is disposed in the engine main body, the shift actuator being attached to a side surface of the crankcase, with an operational axis of the shift actuator being placed in a plane that is orthogonal to an axial direction of the transmission mechanism, wherein a shaft end of an output shaft is covered with a cover that is detachably attached to the side surface of the crankcase, the output shaft forming a part of the transmission mechanism such that torque transmitted from the crankshaft to the transmission mechanism is outputted towards the drive wheel though the output shaft, and the shift actuator is attached to the side surface of the crankcase in a position located above the cover and located closer to a center than to outer ends of the cover extending along an axial direction of the output shaft.