1990 Johnson Evinrude "ES" Colt/Junior thru 8 Service Manual, P/N 507870, Page 70Get this manual
Replacement Avoid pulling "E.S1763" fuel line off fuel fittingsPush off wherever possibleWhen removing "E.S1763" fuel line from fittings, carefully cut the hose to avoid damaging the fittings1Remove and discard tie straps from fuel pump hosesModels using hose clamps use OMC Hose Clamp Wrench PI 325043 to release clampsRemove the hoses from the fuel pump, observing hose locations for reassembly2Remove the fuel pump mounting screwsIf equipped with gasket, discard the gasket3 Connect the hoses to the fuel pumpBe sure the hoses are fully engaged on the fuel pump nipplesSecure the fuel hose with new tie straps using OMC Tie Strap Installation Tool PI 323716 4Remove all old adhesive from fuel pump mounting screwsApply OMC Locquic Primer and OMC Nut Lock to the threads of the screwsIf gasket is required between the fuel pump and the crankcaseinstall the gasketTighten the mounting screws to torque of 24-36 inIbs(2,8-4,4 Nm)5If removed, install the cover wi.t lip of screen facing the fuel pumpTighten the outer screw to torque of 10-15 in Ibs(1,11,7 Nm)Be sure the hose is fully engaged on the fuel cover nipple and secure the hose with new tie strap6Check for leaks by connecting fuel tank line to motor and squeezing primer bulb until definite pressure is felt in the bulb r ill