1990 Johnson Evinrude "ES" Colt/Junior thru 8 Service Manual, P/N 507870, Page 190Get this manual
Exhaust Housing ServicingDeluxe thru 8 Rem oval 1Remove the powerhead as described in Section 42Remove the gearcase as described in Section 6
3housmgs
the two screws securing the lower mount
4 Remove the lower mount housings
tI the two lower side mounts