| 摘要 |
PROBLEM TO BE SOLVED: To effectively discharge heat transmitted from an engine to a carburetor main body on the way of a heat insulative pipe to the outside. SOLUTION: A heat insulative pipe 6 made of heat resistant synthetic resin, for instance, is divided into a body 6A having an intake passage 22 and a body 6B having an intake passage 23. A heat radiation member 15 made of material excellent in heat radiation such as aluminum is sandwiched between the divided bodies 6A and 6B. The bodies 6A and 6B are connected to each other by means of two through-bolts 13. The heat radiation member 15 has a disc form of a diameter larger than that of the heat insulative pipe 6, and a through-hole 15a the same as an intake passage 14 in diameter.
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