Honda Motor Co., Ltd.

Naotoshi Nio

Kota Tokubi

Kentaro Sugimura

A propulsion apparatus for watercraft, including a propulsion motor (M) supported by an upper case (), a lower case () supported by the upper case so as to be rotatable around a steering axis, and rotatably supporting a drive shaft () for transmitting power from the propulsion motor to a propulsion device (), a steering motor () received in the upper case, and a steering reduction gear mechanism () received in the upper case, wherein an output end () of the steering reduction gear mechanism or a part of a path of steering power transmission from the output end to the lower case is provided with a manual engagement member () which is configured to be engaged by a turning tool for manually turning the output end of the steering reduction gear mechanism.

Propulsion apparatus for watercraft

A decompression shaft () of a decompression device () includes an engagement pin () that is guided by a guide groove () formed in a decompression weight (), a decompression cam () that is provided on one cam surface of an intake valve cam () and an exhaust valve cam () so as to advance and retreat, and a connection portion () that connects the engagement pin () and the decompression cam (). The decompression weight () is formed with a rotation restricting groove () that restricts rotation of the decompression shaft () when a force acts in a direction in which the decompression cam () moves on the decompression shaft () from an advanced position to a retracted position when an engine (E) is stopped and that is continuous with the guide groove ().

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Saitama, Japan

Naotoshi Nio