I've been buying Classic Mechanics for a few years now and have yet to hear positive reports about these Chinese clones. Did read of one report [on a Chinese copy of a CG 125] where they suggested changing the carb from an original jap *CG as the original was badly engineered and finished.
Personally, I'd shop for a decent secondhand jap bike, at least spares should be plentyful and available - so best of luck shopping about :wink:
*CG - Cargo's favourite bike

....I've got one currently rusting outside the house :oops: (served me well when thats all I had, but Mrs Noddy won't hear of selling it as we travelled many a mile on her years ago)