1990 Johnson Evinrude "ES" Colt/Junior thru 8 Service Manual, P/N 507870, Page 191Get this manual
Assembly
1Position new muffler gasket on the exhaust housing
2Install the mufflerTighten the screws to torque of 30-40 inIbs(3,4-4,6 Nm)
3Install the lower engine cover to the exhaust housing
f61 '5l 4Place new O-ring on the shift leverInstall the shift rod
pinion with dot toward the port sideInstall the shift shaft gear with flat directly on topInsert the shift lever and engage shift shaft gearInstall and tighten the setscrew securely
5Pack the gear cavity with OMC Triple-Guard greasePlace new O-ring on the exhaust housing coverInstall the cover and tighten the two screws securelyInstallation