FITMENT : This Part is off of a running and driving 1998 KX250, but may fit other years and models, but I cannot guarantee that. Please check the fitment for your machine. If your machine is not the same year and model as mine, you are responsible to ensure proper fitment. CONDITION : Carburetor is in great, working condition and came off of a running and driving bike. Carb is very clean and is ready to use!! Main jet size is 158, and pilot jet size is 45. THIS PART MAY FIT OTHER YEARS, PLEASE DO YOUR OWN RESEARCH! IF YOUR MACHINE IS NOT THE EXACT SAME YEAR AND MODEL AS MY LISTING, YOU ARE RESPONSIBLE TO ENSURE PROPER FITMENT! This part is used, which means that paint may be chipped, it may be dirty or rusty, and there may be damaged spots. If there are oil seals, gaskets, bearings, or o rings in the product, I cannot guarantee that they wont be damaged, but I will make sure to include in the description what I do know. Please look at the pictures very closely. What you see in the pictures and what is described in the description is what is included. If you have any questions, please message me and I will get back to you as soon as I can.