Drain screws, with o-rings, fit for carburetors on the CB350 CB400F, CB550, CB750 and many others. For KZ650- 1978. If you've got a leaky drain screw and the threads on the float bowl are, you might just need a new o-ring.
Carburetor Float Bowl Drain Screw For Kawasaki Z1300 1979-1982 Z1000 LTD 1977 1980 Z650 F J
Carburetor Float Bowl Gasket O-Ring Fit For Kaw ZR1100 ZRX1100 ZR1200 ZRX1200 ZRX1200R ZR-7 ZR-7/S ZRX ZR 1100 1200 1200R R(4pcs)
Mikuni RS flatslide carburetor float bowl gasket kit / o-ring racing 34 36 38 40
Carburetor Float Bowl Gaskets 8 Pack for Honda CB750K 1979 1980 1982 CB750F Super 1979 1980 1982 CB900F Super 1981
Carburetor Float Bowl Compatible With PHBG(black)
Carburetor Float Bowl Compatible With PHBG(Clear)