1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Repair Manual P/N 507947, Page 311Get this manual
Quality of the image is intentionally reduced!
DOWN 1 When the DOWN button is pressed, the pump rotates in clockwise direction2 Fluid pressue opens the DOWN check valve and moves the pump control piston mechanically opens the UP check valve 3 Flui