| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an oil passage structure of an engine for a motorcycle for realizing excellent lubricating performance, while effectively improving vehicle performance such as a bank angle. Ž<P>SOLUTION: This oil passage structure includes an oil feeding passage 73 for supplying oil to an oil passage 62 in a crankshaft 15 from one end of the crankshaft 15, and the oil feeding passage 73 is arranged via a higher position than the axis of the crankshaft 15. The oil feeding passage 73 is formed in a cover member 31 installed on a side surface of an engine case. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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