1971 Evinrude Mate 2HP outboards Service Manual, Page 19Get this manual
3-4 bRemove five screws attaching carburetor body to float chambercRemove low-speed nut, then remove needle valveRemove packing from carburetor body and float chamber, using care to avoid damaging threads in carburetor bodydRemove hinge pin, float, and float valve, and unscrew valve seat and gasketeRemove high-speed nozzle and boss gasketSee Figure 3-5CLEANING, INSPECTION AND R.EPAIR
GENERAL INSTRUCTIONS Clean all parts, except cork float, 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 out passages in the carburetor body and float chamber 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 the needle valvesFLOAT AND NEEDLE VALVE
Figure 3-6Inlet Needle Valve Wear