1996 Johnson Evinrude "ED" 9.9 thru 30 2-Cylinder Service Repair Manual, P/N 507122, Page 39Get 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