You need a Mikuni vm26 on your pit bike! xmotos 125cc gets a performance carb upgrade.

This is how I tuned a genuine mikuni vm26 carburetor. pilot jet kit and main jet kit was ordered to properly tune the carb to my cammed, port and polished 125cc. feels like a 140cc now MAIN JET KIT LINK: https://tboltusa.com/store/tbparts-la... PILOT JET KIT https://tboltusa.com/store/tbparts-pi...