Re: new from Mi.
Brand names, for the most part, aren't important. Some sellers would like you to think they are but the truth is most of the Chinese 2 stroke engines/kits are nearly identical. There is only a few real factories that make them, all in China and a few assembly plants that put the parts and kits together for export.
When you say "China motor" that pretty much tells us what you have and any advice we offer will cover your engine regardless of what decals are attached to the engine or what brand name it was sold under.
Brand names aren't as important as the seller's willingness to offer good customer support after the sale. Of course that doesn't apply in your case but just for future reference.
Sorry, but that's the facts.
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