Iseki Pet50

Iseki is a Japanese farming machinery manufacturer that established in 20's. However they had produced motorcycles when Honda Cub's popularity was booming. It is pretty much a copy of Honda Cub. 50cc air-cooled single cylinder, 4.2 hp.  It is called Iseki Pet50 and came out in 1961. It is approved by Japan Agricultural cooperative, just like any other farming machinery in Japan.