| 摘要 |
PROBLEM TO BE SOLVED: To provide an assembly structure of a carburetor which enables a small lot/many types and highly efficient production. SOLUTION: The internal diameter of half part of an entrance side of an intake port 26 which across through the carburetor body 21 made of alminium or the like, is enlarged. The intake port member 2 formed by plastics is fitted in an enlarged cylindrical part 11. A valve stem 10 united with a choke valve 12 is supported by a guide groove 17a which bends to circumference orientations pass through the guide groove 17 of a pair of top and bottom which is shaft orientation and is installed at the entrance edge of the intake port member 2. At the back edge of the intake port member 2, a venturi part 7a and a cylindrical high-speed fuel nozzle hole 8 which juts into the internal part of the venturi part 7a are formed as one.
|
