1998 Johnson Evinrude "EC" 150, 175 FFI Service Manual, P/N 520211, Page 115Get this manual
Injector Servicing
rn 3Remove nut from injectorrn 4Remove nozzle from injector by pulling out with fingers[] 5Use OMC Injector Check Valve PIN 342678, to remove outlet check valveRemoverInstaller,
1Remove connectors from injectors2Remove injectors and retaining nuts from cylinder heads