A page from a Japanese reference book
http://30w.blog123.fc2.com/blog-entry-237.html
Translated via Googlemangle:
In my eaves, rare came. It is the engine of Miyapetto of 1960.
When I bother you to your house of the person familiar with mopeds of 50-60's the other day, the thing that we have received in exchange for removing car C200 parts of me. Thank you! And until you this engine, myself did not know in detail the bike called "Miyapetto". . . Hey I'm a bike that had been made of Miyata Seisakusho famous by bicycle now. Engine that we receive is like a thing of the 1960 model of [Miyapetto A20]. Making it the maximum speed 65km 2.8 horsepower, 2-speed with 50cc. Evolved into a 3-speed, 5 horsepower to become "Miyapetto sports", is like there to prototype vehicles of up muffler equipped with this engine later. Were exhibited single also events of the other day. Frame of the press & pipe made is interesting. Mechanism of the shift pedal around, too is exquisite. . . . Even so lovely engine! I like the engine with the cylinder head and egg-shaped. The weight is also very light, I can have easy one-handed. ~ ♪ I wonder good for this kind of trade-mark of Miyata will contain firmly on the cover. It is a mark that you see today. It seems to be easy to Shine entire round. . . We will polish in the kitchen supplies that I bought at a convenience store. It came become beautiful state is surprisingly well overall, Dropping the rust and mud. Not terrible fixation screws also, we have succeeded in opening the generator side cover. Sprocket Furamagu a rather small from the bottom, of a strange shape came out on the cover inside. Furamagu is the type with a built-in ignition coil inside. Sprocket. . . How did this happen and reduced? How was the kind of shape from the original or even? ? It is a form of tooth mystery. Loosening the nuts, it was the type which is fixed in the Woodruff key. Mechanism that seems to gear shifter on the back, clutch lever pull type of wire was attached. Among which had been fixed, but will continue to Shine clean, it now works properly with raveling (^ ^) I think engine waist on, and let's check by opening the right case cover next time.
Honda Model F