This kit contains one each of the following, 34mm carb, mounting flange, throttle cable, choke cable, fuel pump, and fuel filter. This kit replaces Tilotson HR and Wallbro WR single carburetors. Replaces the old Tillotson carburetor on your snowmobile, ATV, etc. with a modern Mikuni carburetor and fuel pump. All machines to be converted must have an external crankcase impulse line to operate the Mikuni fuel pump. This is a universal kit containing all the major components necessary to convert to Mikuni carburetion. Because of the variety of machines that used the Tillotson and Mikuni carburetors, this is not a bolt on direct replacement kit. Jetting, fuel pump installation, cable installation to controls, fuel and impulse line installation are all a part of the dealer's custom installation.