Unidad motriz adaptada para su uso en un vehículo motorizado de dos ruedas y que tiene un dispositivo de respiradero, y vehículo motorizado de dos ruedas con la misma

摘要

In a power unit for a motorcycle including a breather device, mission noise is reduced. The breather device 9 includes a communication path 50 for communicating the inside and the outside of a gear case 30 to each other, and the communication path 50 includes a cartridge 51 having an insertion joint 51b and a hose 52. The hose 52 is at least partially located outside of the gear case 30, and has a receiving joint 52a into which the insertion joint 51b of the cartridge is inserted. Inside the hose 52, a filter 42 is provided.