You may find an engine designation(model) down near the shift lever shaft. Most China bikes have a flat spot where the designation is engraved from the factory. Dunno if it was common, but I have seen it on machines dating back to 2012 at least.
Using that you may be able to figure out a sister/brother/cousin of the engine that comes close to what you have.
ZS1xxFMM would be a zongshen with a bore of xx mm, a CG clone. Changing the FMM to something else would make it a CB clone(OHC) as a semi-example.
Add to the last letters if you have a balance shaft equipped version.
tom
__________________
vertical and above ground - my daily goal
|