| 摘要 |
A cover structure (50) in an outboard engine (1) having an engine (2) with an engine block (8), a vertical crankshaft (7) and a vertical camshaft (15) having upper end portions projecting upward from the engine block, a timing belt (17) extended between upper ends of the crankshaft and the camshaft, and a flywheel (12a) disposed on the upper end portion of the crankshaft (7). The ventilation cover structure (50) comprises a first cover (60) disposed above the engine block (8) so as to cover at least the flywheel (12a) and opening downward, and a second cover disposed above the engine block (8) so as to cover a space extending over a portion of the engine block (8) including the camshaft (15) and opening downward. The first and the second covers (60, 80) are joined together so that spaces covered with the first and the second covers (60, 80) are united in a single space. A discharge duct (90) is formed on at least either the first cover (60) or the second cover (80) so as to lie outside a space occupied by the flywheel (12a) on a level above that of the timing belt (17).
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