1998 Johnson Evinrude EC 50 thru 70 HP 3-Cylinder Service Manual, Page 182Get this manual
Exhaust Housing Servicing Removal 1Remove the powerhead as described in Section 42Remove the gearcase as described in Section 6
3Remove the two screwslower engine cover support brackets to exhaust housing adapterNote the location of the washer for correct reassemblyRemove the lower engine cover4Remove steering arm shield5If equipped, remove the two nuts and screws, steering bracket to steering armRemove the steering bracket assembly
Manual tilt models have tilt assist shock absorber which exerts considerable upward pressureRemoving the exhaust housing while it's in the down position could allow sudden release of parts which could cause serious injuryPlace motor in tilt position to relieve pressure