Moto FBM (Fabbrica Bolognese Motocicli) 224 Via Battindarno, Bologna, Italy was founded in 1951 by Vittorio Minarelli and Franco Morini, nephew of Alphonso Morini. The two young Italian engineers produced 125 to 250cc motorcycle engines for other makers.
In 1954 Moto FBM made their first moped engine, the P2, a 48cc 2-stroke 2-speed cable-shift type, and later the P3 3-speed version. See Misc Italian, scroll to Moto FBM.
In 1956 Moto FBM split into F.B. Minarelli and Motori Morini Franco. See Minarelli Motor.
Motori Morini Franco 50cc engines have been used by (US brands in red): AIM, Aprilia, Arciero, Baretta, Benvenuti, Beta, Bianchi, B.M., BSA, Chiorda, Cimatti, Cosmo, Colt, D.M.T., F. Morini, Factory Bike (Spain), Fantic, Garelli, Husqvarna, Intramotor, Intramotor-Gloria, Italjet, Italvelo, Italtelai, ITOM, KTM. LEM, Macbor (Spain), Malaguti, Mecatecno, Monark, Motobecane Sebring, Moto Gori, Moto Meteora, Moto Müller, Moto Villa, Negrini, NVT, Omer, Oscar, Pacer, Paloma, Peripoli, Proxon, Rivara, Scorpion, Snark, Spisni Lino, S.W.M., Tecnomoto, T.G.M., Titan, TM Racing, Ufo, Velomec, Viking, West Wind.
Moto Morini was founded in 1937 in Bologna Italy by Franco Morini’s uncle, Alphonso Morini. Alphonso Morini was an accomplished motorcycle racer and mechanic. Since 1925 he was building motorcycles and setting world records. Moto Morini is most famous in the US for their 1970’s 350cc V-twin motorcycle, Moto Morini 3½.
Motori Morini Franco is not Moto Morini.
F. Morini is a late-1970’s US-model moped brand name, made by Lem. It had a Franco Morini MO1 engine.
Motori Morini Franco is not F. Morini.
Here “Morini” means “Motori Morini Franco”.