Fits: Yamaha YZ250F 2001-2013 Yamaha WR250F 2001-2013 Dimension: Manifold Outlet Port Diameter: 48mm/38mm (Outer/Inner Diameter) Air Filter Outlet Port Diameter: 55mm/44mm (Outer/Inner Diameter) Features: Not OEM brand, this carburetor is a direct manufacturer replacement, does not require any additions or modifications, The models which TPS connector changes the wire colors are the same, you will need to disconnect and fasten the connector. Some models have different TPS sensor, please compare with your original TPS sensor before ordering. Throttle cables with locknuts, you will need to cut a groove, it will take 10 minutes. 100% brand new and high quality. Professional installation is highly recommended (technical guidance from professional customer service). Kit includes: 1 x Complete Carburetor. 1 x Fuel Filter. 4 x Additional Main Jets. 4 x Additional Pilot Jets.