SATO's SEMI-DIESEL ENGINE (Hot bulb engine)
Manufacturer : SATO Company
Manufacturer's Location : Higashiizumocho, Matsue-shi, Shimane, Japan
This is a hot-bulb engine-type engine made at pre World War II. Because a magneto was unnecessary as for the semidiesel engine, it was made in some Japanese makers at the time. This engine burns a charcoal fire on the cylinder head, and heats hot bulb.
This Engine is not my thing. I observed this engine at 2012 SUISHO-no-YU Spa engine show.