bigted, can you clarify that model information please? I'd been trying to find the engine in the Tecumseh technician's handbook and their general service manual. They mention specific "Europa" models called Vantage, Prisma, Synergy, Synergy "55", Spectra, Futura, Centura, HTL, BVS, BH Series, and Geo Tech Series, without numbers or any information about them except spark plug and quantity of oil. This makes me think they are Italian engines Tecumseh sold under its own brand-name. Web searches find quite a few hits for Vantage 35, but none for Vantage 38.

It would be interesting to know who actually made the engines, and whether there is a workshop manual for them (perhaps under the manufacturer's name).