| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To further ensure prevention of fuel increase adjustment exceeding a factory set maximum value of a fuel adjusting valve by an end user. <P>SOLUTION: An adjustment restriction device is provided with a serration part 12c at a rear end part of the fuel adjusting valve 12, and an inward serration part 16a engaging with the serration part under a final assembly condition at an adjustment restriction cap 16 built on the fuel adjusting valve in an axial direction displacement, and abutment pieces 16d, 16e abutting on the adjacent adjustment restriction cap of an outer circumference surface. A circumference groove 12f is provided at a carburetor body inside of the fuel adjusting valve. A C-shape annular body 17 is built on the adjustment restriction cap and an inward projection 17a is entered the circumferential groove under the final assembly condition. The adjustment restriction cap is prevented from being taken off after assembly, and rotation range of the adjustment restriction cap is restricted to prevent fuel increase adjustment exceeding the maximum value by the end user. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
