223 MD33 clone? I will bet that is powered by Zongshen or other smaller brand, similar story heard in chinese foum 8O BUT not Loncin / Jialing
IF want to burn $$$ Genuine Honda SL230 (a domestic market model) parts will fits.
Genuine Loncin:
http://item.taobao.com/item.htm?id=6021892573 | Generic for ZS & clones:
http://item.taobao.com/item.htm?id=6763804175
Depends the situation, one of these will suit ur case:
http://item.taobao.com/item.htm?id=10226973122
http://item.taobao.com/item.htm?id=9877705399
http://item.taobao.com/item.htm?id=10236432912