| 摘要 |
PROBLEM TO BE SOLVED: To satisfy downsizing of a carburetor including a venturi block and light operability of a throttle valve. SOLUTION: In this carburetor, a housing recessed portion 15 opened on an air intake bore 2 side is formed at the end face of a piston-type throttle valve 8, the venturi block 17 that is to be housed in the housing recessed portion 15 when the throttle valve 8 is fully closed is fixedly attached to an air intake trunk 3, and a venturi 18 that is made continuous to the upstream side and downstream side of the air intake bore 2 when the throttle valve 8 is fully opened is formed in the venturi block 17. The connection terminal 31 of an operation wire 30 is connected to the throttle valve 8 in a position above the housing recessed portion 15 and offset by a part el from the center axis Y of the throttle valve 8 toward the downstream side of the air intake bore 2, and the operation wire 30 is arranged in parallel to the center axis Y of the throttle valve 8 in a valve cylinder 4. COPYRIGHT: (C)2010,JPO&INPIT
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