| 摘要 |
An outboard motor includes an engine and a catalyst. The engine includes a cylinder and a cylinder head. The engine includes an exhaust port, a catalyst housing portion, a first exhaust passage, and a passage defining member. The exhaust port is provided in the cylinder head. The catalyst housing portion is provided at a side portion of the cylinder head. The first exhaust passage is arranged to guide exhaust discharged from the exhaust port into an interior of the catalyst housing portion. The passage defining member defines a second exhaust passage. The second exhaust passage is arranged such that exhaust that has passed through the interior of the catalyst housing portion flows into the second exhaust passage. The catalyst is held by the engine in a state in which at least a portion of the catalyst is housed in the interior of the catalyst housing portion.
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