1995 Johnson/Evinrude Outboards 25, 35 3-Cylinder Service Manual, Page 255Get this manual
MANUAL RELEASE
1The engine can be manually raised or lowered through its entire trim and tilt range by opening the manual release valveTo operate the manual release valve, turn valve slowly counterclockwise with screwdriver until it lightly contacts its retaining ringabout 3112 turns
2When the manual release valve is open and the engine is manually lowered, fluid flows from below the cylinder piston (h), bypasses the UP check valvepasses through the manual release valveand flows into the reservoir through the passage As the cylinder piston moves down, the filter valve cylinder
opens and allows fluid to flow to the top of the