Mikuni tmx 38 out of a 2023 gas gas mc125.  Has about 10 hrs use.  Comes with all stock jets however is set up with the vital mx jetting that fixes the rich low end condition on the Austrian 125s.  Slide is machined to a 5.0 and has the S4 needle jet installed.  I will include both the original vital spec and updated spec on paper so you can try both.  It runs really good as it is set up now with the 42-75 needle.  Anyway you can try either  as it comes with both updated needles.