1997 Johnsoon Evinrude "EU" 50 thru 70 3-Cylinder Service Repair Manual, P/N 507266, Page 35Get this manual
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7 Inspect propeller shaft seals for evidence of leakageReplace if necessary8 Drain and refill gearcaseLubricate all components of engineSee Lubrication, this section9 Check propeller conditionReplace