| 摘要 |
PROBLEM TO BE SOLVED: To achieve cost reduction in production, when producing two types of engines, when one with a cooling fan rotated in the clockwise direction and the other with a cooling fan rotated in the counterclockwise direction. SOLUTION: The engine has a magnet unit 9 of an igniter, which is attached to an engine body 2, and a cooling fan 3. In this engine, a shutoff region 17 is formed in a fan case 4, by fastening a shutoff member 12 of the fan case 4 together with the magnet unit 9, when attaching the magnet unit 9 to the engine body 2. Using this structure, the same fan case 4 can be commonly used for both of the two types of engines.
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