1996 Johnson/Evinrude Outboards 25, 35 3-Cylinder Service Manual, Page 17Get this manual
Gearcase Lubrication
1 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 completely
Important
Do not remove the shift cradle screw (8)
To refill, place tube or pressure can nozzle of OMC Ultra-HPF gearcase lubricant in drainfill hole