| 摘要 |
An exhaust pipe collecting structure for a multi-cylinder engine unit having multiple cylinders comprises a first exhaust pipe group and a second exhaust pipe group, each of which is comprised of two exhaust pipes selected from four exhaust pipes respectively connected to the four cylinders; a first exhaust sub-collecting pipe cast integrally with the first exhaust pipe group, a second exhaust sub-collecting pipe cast integrally with the second exhaust pipe group, a first joint portion located at a downstream end portion of the first exhaust sub-collecting pipe, and a second joint portion located at a downstream end portion of the second exhaust sub-collecting pipe.
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