Like new condition. Was used approximately 15 minutes and then decided to have a Link's engine built and Link's modified the stock carburetor, so I have no use for this one. Even though it was only used for about 15 minutes, I sent it back to SmartCarb to make sure everything was setup correctly for the new buyer. It is set up for a 2019 KX100 with a Pro Circuit pipe and VP C12 fuel, mixed 32:1 w/ Yamalube, but is plenty adjustable for other combinations. This carb should fit other 28mm carburetor bikes. I just listed the ones I know of. Here is from the SmartCarb website: Give your little racer an edge and give yourself a break with our 28mm SC2. This SmartCarb replaces the stock 28mm Keihin carburetor in Kawasaki KX85 and KX100 dirt bikes, offering unparalleled performance, efficiency, and ease of use. Description The SC2 SmartCarb is a precision metering instrument that provides extremely fine fuel atomization, precise mixture control, and air density compensation in a single circuit, jet-less fuel system. CNC billet aluminum construction Patented single fuel circuit design Extremely fine fuel atomization Optimal air/fuel ratio control Designed & manufactured in the USA Performance Guarantees The SC2’s patented variable venturi shape focuses airflow directly at the metering rod, maximizing fuel atomization and combustion efficiency at all throttle positions. 8-10% increase in horsepower & torque 25-30% greater average fuel economy Crisp, clean throttle response & substantial top end overrev No compromises Remarkable Simplicity The SC2 SmartCarb is externally adjustable track or trail-side in seconds. Patented, internal float bowl venting provides unmatched air density compensation. Tool-free, external adjustability – in seconds! Automatic air density compensation (elevation, temperature, even boost) NO jets & NO more jetting Integrated venting system – no dangling vent lines Zero fuel spillage Fitment Information No modifications are required for fitment. This SmartCarb accepts the stock throttle cable.