1989 Johnson/Evinrude Outboards 88 thru 110 150 thru 175 models Service RepaIr Manual P/N 507757, Page 79Get this manual
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6 Remove the float hinge pinRemove the float and inlet needle 7 Remove the float valve seat and gasket8 Remove the intermediate fuel orifices using OrificeDriver PN 317002 and record their size for id