Have the same year the 125 r and have had it totally rebuilt with full pro Circuit pipe and v force reeds And still won’t rip like yours I think My jetting is off
I have a 1998 yz125 and a 2000 the 1998 had bad reeds so I used other used reeds that looked better and after a lot of money I rebuilt the carbs dn everything I bought v force reeds and they didn’t fit but I put jets in and it runs way better but still weird I’m still working on it