1995 Johnson/Evinrude Outboards 40 thru 55 2-Cylinder Service Manual, Page 317Get this manual
1Be sure the manual release valve is screwed in all the wayRemove the retaining ring2Remove the manual release valve assembly
3Inspect the manual release valveDiscard the O-rings on the housingf4l 4Remove the up check valve housing using drag link socketRemove the components of the up check valve from the manifoldr;;l 5Inspect the components of the up check valvehousingspringseatand poppet Discard the O-rings from the housing and seat