Specification: Opening I.D.:16mm Bolt Hole Spacing (center to center):46.7mm Air Filter Mounting O.D.:30.9mm Fitment: Replacement for Honda CT90 Trail 90 K2, K3, K4 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 Replacement for Honda CT70 Trail 70 K0, K1, K2, K3 1969 1970 1971 1972 1973 1974 1975 1976 1977 Package Included: 1 x carburetor 1 x air filter 1 x spark plug 1 x fuel filter Note: Before placing an order, please check if the carburetor kit fits your model properly