To the homepage of Moto Morini Club Nederland
Information on Moto Morini framenumbers on many (V-twin and single) models 125, 250, 3½ & 500 cc.
(See also a link at the bottom of this page).
The location of the letter on the engine as mentioned below. This letter can be A, S, K, X, etc.
Early genuine 3½ Sport models also had an "S" stamped at the bottom of the front cylinder on the right-hand side.
Remark: Morinis did not have an engine-number in Italy or many other countries, but just one letter identifying the type of engine.
In case the engine of your bike does have a number, this number was often given by the importer, due to the legislation in the country of registration.
In the Italian magazine "La Moto" of April 1987, the following production numbers of Moto Morini were published:
The British Morini Riders Club (MRC) also has information on framenumbers on their website.
Follow this link for framenumbers MRC.