I got a pretty much brand new 21mm tnt carb given to me for free but i want to know the quaility of them and where or what jets do i use can someone help thanks
They are terrible copys. Lots of reports of problems with them. They take 6mm dellorto jets as that's what the carb is a copy of. You can buy the real things for not much money so I don't quite understand people buying TNT carbs.