1972 Evinrude StarFlire 125 HP Outboards Service Manual, PN 4822, Page 23Get this manual
cRemove high and low speed orifice plugs, two eachLow speed plugs are stamped #30High speed plugs are stamped 72-CTo prevent damage to threads in float chamber assembly, use fixed jet screwdriver (Special Tool #317002)See Figures 3-9 and 3-10dRemove four screws attaching float chamber to carburetor body Remove float chamber and gasketRemove nylon hinge pin to permit removal of float and float arm assemblySee Figure -11eRemove float valve, float valve seat, and gasket assembly from carburetor body
CLEANING, INSPECTION AND REPAIR
GENERAL INSTRUCTIONS Clean all parts, except float and float valve, in solvent and blow dryDO NOT dry parts with cloth as lint may cause trouble in the reassembled carburetorBe sure all particles of gaskets are removed from gasket surfacesFlush all passages in the carburetor body with solvent and remove any gummy deposits with OMC Accessory Engine CleanerCertain solvents will not remove this gum which accumulates particularly in the float chamber and on needle valvesFLOAT AND NEEDLE VALVE