| 摘要 |
PURPOSE:To effectively utilize space, and to improve engine output by providing a lower extension parts, which are extended to the outside of the right and left side surfaces fuel feeder on the inside of each main frame, and with which the capacity of an intake air box is increased, on lower right and left of the intake air box, in an integrated manner. CONSTITUTION:A front and rear four-cylinder type-type four-cylinder engine in a motorcycle is supported below a main frame 4 extending symmetrically forward and backward, and outside air is fed to a throttle body 5 mounted on the V-bank part of the engine from an intake air box 6 above the throttle body 5. The intake air box 6 is stored in the recessed part provided on the bottom part of a fuel tank supported on the main frame 4, and the air box comprises a cover 20 and a base 21, the opening part of which is covered with the cover 20, and the air box is mounted on the throttle body 5 in the base 21. Lower extension parts 22 extending downward are provided on both sides of the lower part of the base 21, so as to increase the capacity of the air box 6. |
