| 摘要 |
<p>A motor cycle comprising: a unit swinging type engine unit pivotally supported below a storage box (22) to a body frame, a cylinder axis inclined frontwardly upward, an intake passage connected to an intake port (3g) and including a first part extending above from an upper wall of the cylinder head (3), a second part connected to the upper end of the first part and bent rearward, and a third part connected to the rear end of the second part and extending rearward, wherein the first or third part of the intake passage comprises a throttle body (5) whose center axis extends linearly, the throttle body (5) including a first throttle valve (5a), a second throttle valve (5b) located upstream of the first throttle valve and a link type delay mechanism (5d) linking the first throttle valve and the second throttle valve, the unit swinging type engine unit further includes an injector (11) being fitted into a fixing hole (3m) so that the injection nozzle is located in a chamber (12c) formed at an end of the fixing hole near to the injection passage (14), and the motor cycle further comprises a sub-passage (13) connecting the chamber (12c) and a portion of the throttle body (5) located between the first throttle valve (5a) and the second throttle valve (5b).</p> |
