Chinese carbs have gotten a bad rep, and thats because people like me get a bad one and complain, but recently i have gotten one that is OK, it does not compare to OEM but most people wouldnt notice it , i do, they are many good ones out there, but the trick is finding them. The best way is from word of mouth from people who has used them, or at least get one that has a company brand. If they go to the trouble of putting their name on it thats a plus. I have always been impressed with the build quality, but the jetting is wrong, wheather it is fuel jets to air jets ratio, im not really sure.