To provide a structure of an internal combustion engine suitable for a motorcycle with a pedal and a structure of a driving system, in the structure of the internal combustion engine of the motorcycle with the pedal having a driving system by the pedal and a driving system by the internal combustion engine.
The internal combustion engine comprises a cylinder extending in the direction opposite to the driving wheel of the vehicle with respect to a crank shaft, and an overhead valve type cylinder head to be connected to an end of the cylinder. In the cylinder head, a cam shaft and the overhead valve are arranged on one side with respect to the extension line of a cylinder axial line, and a pedal shaft is arranged on the downside of the cylinder head.
SEKIYA YOSHIYUKI
Nakamura Kun
Mitsuharu Oda