1989 Johnson Evinrude "CE" 9.9 thru 30 Service Manual, P/N 507754, Page 22Get this manual
Gearcase LubricationAll Models
To avoid accidental starting of engine while servicing, twist and remove all spark plug leads
Remove oil drain fill plug and oil level plug from gearcaseWith motor in normal operating position, allow oil to drain completelyTo refill, place tube or pressure can nozzle of GMC Hi-Vis gearcase lubricant in drainfill hole If GMC Hi-Vis gearcase lubricant is not available, GMC Premium Blend gearcase lube can be used as an alternateWith motor in normal operating position, fill until lubricant appears at oil level holeInstall oil level plug before removing lubricant tube or pressure can nozzle from oil drain fill holeDrain fill plug can then be installed securely without oil lossIf the proper tube or filler type can is not available, install drainfill plug Slowly fill gearcase through oil level hole allowing trapped air to escape Install plug and tighten to torque of 60-84 in Ibs(7 -9 Nm)