1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Repair Manual P/N 507947, Page 37Get this manual
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Preseason Service 1 Check gearcase lubricationIf leakage is evident, gearcase seals need attention Check lubricant level in power trimtilt reservoirSee Lubrication, this section light coating of Tripe