| 摘要 |
A casing of an outboard motor can be formed with an upper casing, a lower casing, and an extension casing interposed between the upper casing and the lower casing. Water guiding passages, which can be formed with jacket sections or the like, can extend along both inner side surfaces of the extension casing. The water guiding passages can communicate with a space. Water that leaks from a cooling water pump in the space is allowed to flow through the water guiding passages so as to be used as cooling water. A cooling water inlet of each jacket section can be made at a bottom end of a partition, while the cooling water outlet of each jacket section can be made at a top end of a partition. A bottom of each jacket section can be formed with a bottom closure member.
|
