1989 Johnson Evinrude "CE" Colt/Junior thru 8 Service Manual, P/N 507753, Page 208Get this manual
Exhaust Housing ServicingDeluxe thru 8 Removal 1Remove the powerhead as described in Section 42Remove the gearcase as described in Section 6
3 Remove the two screws securing the lower mount housings4 Remove the lower mount housings the two lower side mounts
thrust mount
5Lift and twist the exhaust housing to free the upper mounts from the swivel bracket assembly