| 摘要 |
PURPOSE:To obtain a required cooling effect introducing the outside air in the vicinity of a carburetor by arranging a suction port of a suction passage in an air cleaner in the vicinity of the carburetor between the air cleaner and an engine. CONSTITUTION:Ram air is introduced from an introducing port passing through a duct 23 thereafter supplied to space surrounded by a car body frame, bottom wall of a fuel tank and its side wall. Supplied air is guided in the vicinity of an opening of a suction duct 19 by a guide wall 17c of an air cleaner 15, further the air, after it passes through lower and upper side passages 17b, 16b, is filtered by an element 18 and sucked to a carburetor 14. Here the air cleaner 15 and the suction duct 19 are arranged respectively in the above described space. And the suction duct 19 is opened toward the guide wall 17c of the air cleaner 15 in the vicinity of the carburetor 14. Thus introducing the ram air in the vicinity of the carburetor 14, a required cooling effect is obtained. |
