1997 "EU" Johnson Evinrude 5 thru 15 Four Stroke Service Manual, P/N 507262, Page 21Get this manual
Gearcase Lubrication
To avoid accidental starting of engine while servicing, twist and remove all spark plug leads
Remove oil drainfill 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 OMC Ultra-HPF gearcase lubricant in drainfill hole
INote If OM: Ultra-HPF gearcase lubricant is not available, OMC
Hi-Vis gearcase lube can be used as an alternate
With motor in normal operating position, fill until lubricant appears at oil level hole Install oil level plug before removing lubricant tube or pressure can nozzle from oil drainfill holeDrainfill plug can be installed securely without oil loss Tighten plugs to torque of 84-86 inIbs(9-10 Nm)