1989 Johnson/Evinrude Outboards 88 thru 110 150 thru 175 models Service RepaIr Manual P/N 507757, Page 325Get this manual
Quality of the image is intentionally reduced!
Component Description Trim-up Relief ValveThis valve controls maximum oil pressure in the system during trim-outtilt-upIt also bIeeds oil to the reservoir when the engine is run at speeds over 1500 RP