https://www.amazon.com/shamofeng-Car...ix=pz26&sr=8-5 I bought this cheap Chinese Carb. I threw a 40 pilot 110 main in the video. I currently have a 42 pilot 115 main 1 1/4 out on the air screw. That's with the Kp moto exhaust. Seems to run decent smells a little rich. I have to check the plug still haven't ridden it much. This thing woke up just like my Brozz did with the basic upgrades. Still breaking it in though. Have yet to really get on it. This thing will power wheelie in 1st and 2nd no problem. Fun little bike.