Patent ID: 7588009

Claim:
A fuel injection type engine for a motorcycle, comprising: a cylinder having a cylinder axis which is arranged substantially in a vertical direction; a cylinder head arranged above the cylinder and having an intake port formed therein; a head cover; a connecting sleeve portion projecting rearwardly relative to a joint portion of the cylinder head and the head cover, the connecting sleeve portion forming an inlet portion of the intake port; a throttle body having an intake passage leading to the intake port; an insulator provided between the throttle body and the connecting sleeve portion for connecting the throttle body to the connecting sleeve portion; a fuel injection valve for injecting fuel toward the intake port; wherein the connecting sleeve portion is integrally formed with a rear side of the cylinder head in a manner such that the insulator and the throttle body are arranged rearward of the cylinder head, and wherein each of the intake port, the insulator, and the throttle body has an axis that is arranged on a plane (PL 2 ) which is substantially horizontal, the axis (L 3 ) of the intake port extending in a direction which is parallel to a lengthwise direction (LL) of the motorcycle, and the axis (L 2 ) of the throttle body extending in a direction at an angle relative to the lengthwise direction (LL) of the motorcycle, so that a rear end of the throttle body is offset to one side of a cushion unit.