I've searched for hours and didn´t get to a point, that's why I'm bothering you asking for help.
I have s Sherpa T 250 model 190 (1977 I supose). It is matching numbers but my "problem" is that these numbers are 8 digits instead of 9 digits (RM-190***90 / RB-190***90). I've checked a serial at the left crankcase that is 112-10Y019, what I think confirms that is a 250cc Sherpa/Alpina engine.
Does anyone know why it has these 8 digits if it is supposed to have 9???
Thanks in advance for any response.