Layout structure of a fuel injection device in a motor cycle

A fuel injection type engine, comprising:

• a cylinder head having an intake port formed therein;
• a throttle body having an intake passage leading to the intake port in a body thereof;
• a throttle valve capable of controlling a flow area of the intake passage in the body such that the throttle valve is operable to be opened and closed;
• a fuel injection valve for injecting fuel toward the intake port;
• wherein a connecting sleeve portion projects further outwardly relative to a joint portion of the cylinder head and a head cover and forms an inlet portion of the intake port that is integrally formed with the cylinder head, and a distal end portion of the fuel injection valve is hermetically fitted into a mounting hole of the connecting sleeve portion, such that the fuel injection valve injects fuel towards the intake port, said mounting hole being formed in the connecting sleeve portion, and the throttle body is connected to the connecting sleeve portion with an insulator, and
• wherein the throttle body is arranged on an upper side of a transmission (M) of the engine, an axis of the inlet portion of the intake port which is integrally formed with the cylinder head is arranged on a plane (PL2) which is substantially orthogonal to a cylinder axis (C), and an axis of the intake passage of the throttle body is arranged on the plane (PL2), wherein the insulator is formed such that it is bent to one side in order to avoid interference between the throttle body and the rear cushion, and the insulator is arranged on the plane (PL2).