Am I correct in assuming you mean the needle CLIP is all the way up?

If so, and if it still seems too rich (smoky, black oily plug) then you may want to check the float level. If the float level is too high, it can mimic a too rich condition. It can be too high and still not over flow.

If that's not the case, then I'd contact the dealer/seller about a replacement jet and go from there.