1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Manual, Page 93Get this manual
Carburetor ServicingAll Models Push fuel hose off fuel fittingsdon't pullIf pushing won't separate hose and fitting, carefully cut the hose along its side and peel it back to avoid damaging the fittings
1Remove air silencer cover screwsDiscard air silencer cover gasketUse new screws and gasket upon reassembly
f31 f41 2Remove air silencer base screws and gasket; discard all3Disconnect the drain hose and set the air silencer aside4Cut fuel hose tie straps at carburetors and disconnect fuel hoses