1990 Johnson Evinrude "ES" 9.9 thru 30 Service Manual, P/N 507871, Page 204Get this manual
Exhaust Housing Servicing10, 14 Removal and Disassembly 1Remove the powerhead as described in Section 42Remove the gearcase as described in Section 6
3Remove the screws the exhaust housing
retaining the lower engine cover to
4 Remove the four nuts mounts
from the upper and lower side
5 Remove the two screws and flat washers securing the port to the starboard lower mount housing
r;"] 6Loosen the nut from the upper front rubber mountPry
up on the upper side mounts and separate the exhaust housing rom the swivel bracket assembly