| 摘要 |
This invention relates to a cam mechanism with a decompression device formed by integrating a centrifugal weight and a decompression cam lobe. The decompression device is formed by preparing a cylindrical shaft having a decompression cam lobe at one end of the shaft and a centrifugal weight at the other end. The device is constructed to be disposed on a camshaft by inserting the decompression cam lobe into a grove portion of a second cam, and pivotally supporting the shaft receiving hole on the camshaft.
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