2007 Evinrude E-Tec 75, 90 HP outboards Service Manual, Page 172Get this manual
FUEL SYSTEM FUEL COMPONENT SERVICING Thread adaptor and stud into face of injectorHold mounting cup securelyWork slide hammer to separate injector from mount housingReinstall injector into mount housingPress on injector face until injector seats in mount housing
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Remove adaptor from injectorRemove crush ring and O-rings from injectorInspect and clean injector filterInstall new crush ring and O-ringsLubricate O-rings with STP Oil Treatment
Installation IMPORTANT: All injectors must be installed in
the correct cylinder by serial numberImproper injector installation can result in outboard failureInstallation of replacement injectors requires the use of diagnostic software and coefficient data supplied with all replacement injectors on 3.5 infloppy disk