| 摘要 |
PROBLEM TO BE SOLVED: To provide a direct acting valve gear having a simple configuration and capable of achieving decompression action. SOLUTION: A second cam 20 for decompression having slightly larger diameter than that of a base circle of a first cam 19 is provided separately from the first cam 19 for valve lift on a camshaft 4 to allow sliding. The second cam 20 is made to slide at starting and is moved on a valve lifter 6 to put a valve 13 in a combustion chamber opened condition. COPYRIGHT: (C)2007,JPO&INPIT
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