1989 Johnson/Evinrude "CE" 60 Thru 70 Models Service Repair Manual P/N 507756, Page 289Get this manual
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1491 31 Remove the high pressure port O-ring 1501 32 Remove the trim-down relief valve and springe:!J 33 Clean and inspect the components of the trim-down pump relief valveReplace the rubber sealif ne