| 摘要 |
PROBLEM TO BE SOLVED: To expand a breather chamber in a power unit while using an engine as a rigid member of a vehicle body and securing the startability of the engine by a starter motor.SOLUTION: In a saddle riding type vehicle, a front side boss part and a rear side boss part are projectingly provided on the front side of a crankshaft of an engine with a cylinder provided tiltingly and on the rear part of a power unit case, respectively, a front side engine bracket and a rear side engine bracket are provided on a main frame of a vehicle body supporting the power unit case, and the front side boss part and the rear side boss part are fastened to the front side engine bracket and the rear side engine bracket with bolts, respectively. A starter motor for the engine is arranged lower than a crank chamber side upper wall 174 of the power unit case, and inside the front side boss part projecting upward, a breather chamber 200 is provided which is formed to extend before and behind the crankshaft. |
