| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a saddle-straddling type vehicle capable of preventing generation of bubble in fuel by cooling a fuel injection device at low costs in a simple structure and controlling a precise fuel injection. <P>SOLUTION: The saddle-straddling type vehicle is provided with a body frame, a cover, and an air-cooled engine with at least a part thereof exposed from the cover. The engine comprises a cylinder head wherein an intake port and an injection passage connected with the intake port are formed, the fuel injection device mounted on the cylinder head and having an injection nozzle for injecting a fuel to an injection passage, the intake passage, first and second opening and closing mechanisms for opening and closing the intake passage, and a secondary passage for connecting a downstream side section rather than the second opening and closing mechanism at an upstream side rather than the first opening and closing mechanism of the intake passage and the injection passage and leading air of the intake passage to the injection passage at the time of idling of at least the air-cooled engine. <P>COPYRIGHT: (C)2009,JPO&INPIT |
