A window into random stuff that interests me; but mostly motorcycles.
Sure it's a Simson? Looks more like an MZ TS 250/1 to me. Note the round 'lump' where they moved the oil filler from the earlier models as it would covered by the angled carb. (OK, I'll get my anorak!)
It's physically smaller than a TS motor, that's why I reckon that it's a Simson.
You have that for the same reason I have a muffler for a Suzuki600/750....well it was only ten dollars at the local flea market this weekend.I have never owned a Suzuki, but I'm sure it will come in handy...