| 摘要 |
PURPOSE:To release decompressing operation automatically thus to improve the operationability by constructing such that the decompressor open/close member is closed through function of a member which is functioned by the compressed air fed from the engine body. CONSTITUTION:When applying onto a three-cylinder two-cycle engine, decompressor units 6 are arranged respectively above each cylinder. Each unit 6 is constructed by providing a decompression valve 8 to the decompressor body 7 screwed to the open section of the cylinder head 5. The decompression valve 8 is constructed such that it is pushed down through a decompression shaft 15 upon turning of the decompression lever 18a to the right and brought into decompressed condition. When starting the engine under decompressed condition, the pressure in the crank chamber 31 will increase and upon leading of the compressed gas through a pipe 30 to a diaphragm type decompression releaser 23, the rod 24 will move to the right thus to turn the decompression lever 18a to the left and to release the decompressed condition. |
