CARBURETOR REPLACEMENT: You will get the fairly reliable and durable carb to help deliver optimum engines performance and to give your ATV the new power and torque. Perfect choice to replace your defective carb assemblyPREMIUM QUALITY: This carburetor is manufactured to the highest production standards which means that it is good at mixing fuel and air, keeps your engine running smoothly and prevents engine from lacking of oil or spillingFITS: For NST Kazuma Baja 50cc 70cc 90cc 110cc 125cc ATV Go Kart. Fits most atv go kart dirt bike, such as Coolster, Kazuma, Buyang, Coolsport, Lifan, AIM-EX, Honda, Redcat, Eagle, Go Kart Moped ScooterEngine Opening O.D.: 20mm, Bolt Hole Spacing (engine side): 48mm (on center), Outer Diameter(air filter side): 33mm/ Inner Diameter (air filter side): 28mm12-MONTH WARRANTY: If the carburetor assembly fails, cracks, stops working or any other problems, you can rely on our service of carefree REPLACEMENT or REFUNDFitments: NST Kazuma Baja 50cc 70cc 90cc 1