1999 "EE" Evinrude 5 thru 15 4-Stroke Service Repair Manual, P/N 787022, Page 270Get this manual
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25 Pressure and vacuum test the gearcase as follows:
26 Fill the gearcase with 10-11 floz(290-325 ml) lubricant as follows: Secure the gearcase in an upright position Remove the oil level