| 摘要 |
PROBLEM TO BE SOLVED: To provide a connecting tube member for an intake pipe that can stabilize a flow of mixed air by preventing incomplete combustion gas from being accumulated, in an inner circumferential surface of the connecting tube for the intake pipe that is placed in an intake passage of a carburetor and an engine, through which mixed air of gas and air passes in the form of mist. SOLUTION: A cylindrical member 32 having high heat conductivity is provided on an inner circumferential surface of a connecting tube member 31 for an intake pipe, in the connecting tube member 31 that is placed in an intake passage of a carburetor and an engine, through which mixed air of gas and air passes in the form of mist, and that is used to connect an intake pipe and an intake port.
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