| 摘要 |
A motorcycle (10) comprises a swing type engine unit including an engine (40) having a crank shaft (41), a drive pulley (51) connected to the crank shaft (41) on the left of the engine (40) to serve as transmission to a rear wheel (30b) through a drive belt (52), an alternator (70) connected to the crank shaft (41) on the right of the engine (40), and a cooling fan (80) connected to the crank shaft (41) on the right of the engine (40) to lead an outside air (F). The drive belt (52) is provided in a longitudinal direction of a vehicle to be arranged outwardly of the engine (40) from the rear wheel (30b) in a vehicle width direction. The swing type engine unit is provided with a starter-clutch case (57), in which a starter clutch (54) is accommodated. The starter-clutch case (57) is provided between the drive pulley (51) and the engine (40). The starter clutch case is closed by a lid (57b), wherein a sealing member (57c) is provided therebetween.
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