Kawasaki's Aircraft Company began the development of a motorcycle engine in 1949. The development was completed in 1952 and mass production started in 1953.[10] The engine was an air cooled,148 cc, OHV, four-stroke single cylinder with a maximum power of 4 PS (2.9 kW; 3.9 hp) at 4,000 rpm. In 1954, the first complete Kawasaki Motorcycle was produced under the name of Meihatsu, a subsidiary of Kawasaki Aircraft. In 1960, Kawasaki completed construction of a factory dedicated exclusively to motorcycle production and bought