1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Manual, Page 175Get this manual
Exhaust Housing Servicing40, 48, 50
Removal
1Remove the powerhead as described in Section 42Remove the gearcase as described in Section 6
ill 3Remove the three lower mount cover screws4Separate the lower mount covers from the swivel bracketf211al5Check condition of the lower front mount and the t=.J two lower side mounts f416Remove the three upper mount to inner exhaust housing screws7lift the exhaust housing assembly from the swivel bracketDisassembly