Fuel direct injection type two cycle internal combustion engine

A fuel direct injection type two cycle internal combustion engine comprising an engine body including a crank case in which a crank shaft is disposed, 1st through Nth cylinders (N is an integral number of more than 2) disposed along an axial direction of said crank shaft, intake pipes to supply air to intake ports in said engine body and exhaust pipes connected to exhaust ports provided in the respective 1st through Nth cylinders, 1st through Nth fuel injection valves to inject fuel directly into combustion chambers of the respective 1st through Nth cylinders and a high output pressure fuel pump to supply said fuel to said 1st through Nth fuel injection valves, characterized by further comprising a pump drive shaft disposed in a vacant space in said engine body, supported by said engine body and connected to said fuel pump and a reduction gear means to transmit a rotation of said crank shaft to said pump drive shaft while reducing its revolution.