1995 Mariner Mercury Outboards Service Manual 50HP 4-Stroke, Page 201Get this manual
Power Trim System Removal 1Tilt outboard to the full up position and support with tilt lock pinUse diagonal pliers to remove the trilobe pin that retains the upper pivot pin
NOTE: Using diagonal pliers, rock the dowel pin back and forth until loose, then pivot the pliers upward to pry the dowel pin down and out
aTilt Lock Pin