166fmm Help with ID and Parts - Pentora 250

[Dano72]

I just acquired a Pentora 250 with the 166Fmm engine. I also have an older Pentora with the CG200 engine, but I am having trouble finding parts for this engine. At the moment I am looking for gaskets. Is this perhaps a variation of another engine series, but I cannot seem to find any parts. So far I have found perhaps it is a Zongshen 250 - maybe Cb250, but the magneto cover does not seem to match. Thanks for any help or links!