| 摘要 |
PROBLEM TO BE SOLVED: To provide an intake air cooling structure for an outboard motor capable applicable to a V-shaped engine. SOLUTION: In the outboard motor 1 provided with a vertical engine 3 having a cylinder head 14, a cylinder block 15 and a crankcase 16, and having a crankshaft 4 approximately vertically mounted on a join face of the crankcase 16 and the cylinder block 15, an intake manifold 46 forming an intake system 48 is provided with a cooling water passage 52 exclusively used for the intake manifold 46, a water jacket 60 for cooling a main gallery 40 is mounted in adjacent to the main gallery 40 formed inside of the engine 3, and the cooling water after cooling the intake manifold is guided to the water jacket 60. |
