1976 Evinrude 200 HP Outboards Service Manual, PN 5199, Page 181Get this manual
HYDRAULIC TROUBLESHOOTING CHART
Motor not running or reversing Low oil Air in system Pump malfunction Clogged pump filter Manual release open or seal leaking Manual release O-ring leaking Pump high pressure O-ring damaged Dirt or scratch holding pump from seating on manifold P-2, O-ring damaged -2 leaking or held open by leaking V-3 or C-1 seat V-7,will not open or plugged -1 leaking Passages clogged Binding pistons Leaking trim or tilt cylinder piston or sleeve O-rings Leaking oil lines V-7 leaking V-5 leaking Tilt cylinder valves leaking -8 held open C-1leaking -6 not opening fully, or plugged Motor turning too slowly Pipe plugs leaking Trim cylinder end cap O-ring leaking Reservoir plug loose or O-ring damaged V-1 jammed or bad spring -3 not opening P-1 too loose or too tight in manifold bore V-2 not opening V-1 relief pressure high -1 pressure relief low P-2, tangs bent or broken