1998 Johnson Evinrude "EC" 2 thru 8 Service Manual, P/N 520202, Page 184Get this manual
Exhaust Housing Servicingthru 8
Removal
1Remove the powerhead as described in Section 42Remove the gearcase as described in Section 6
ITJ 3Remove the two screws securing the lower mount housings
W 4Remove the lower mount housingsthrust mount ,
and the two lower side mounts
rn 5Lift and twist the exhaust housing to free the upper mounts from the swivel bracket assembly
Disassembly
1Remove the two screws retaining the exhaust housing coverRemove the cover and discard the O-ring