Design of the KE- 1 motorcycle Engine is completed. (Kawasaki Machine Industry (the precursor to Kawasaki Aircraft Company), Takatsuki factory).
"Aircraft engineers" began the development of the KE (Kawasaki Engine) in 1949. Mass production starts in 1953.
The air-cooled, 148cc, OHV, 4-stroke Single has a maximum power of 4 PS at 4,000 rpm.