| 摘要 |
A small watercraft including an engine mounted in a body such that an axial direction of a crankshaft corresponds with a longitudinal direction of the body, an oil tank provided such that a longitudinal direction thereof corresponds with the axial direction of the crankshaft, a first communicating port and a second communicating port formed in the oil tank at least two positions spaced apart from each other in the longitudinal direction, a gas-release chamber having a third communicating port and a fourth communicating port provided at two positions spaced apart from each other, and at least one fifth communicating port located to communicate with an ambient side, the gas-release chamber having a bottom face located higher than a liquid level of oil inside the oil tank, wherein the first communicating port communicates with the third communicating port and the second communicating port communicates with the fourth communicating port.
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