1993 Johnson Evinrude "ET" 2 thru 8 Service Manual, P/N 508281, Page 193Get this manual
Exhaust Housing Servicing2, 2.3, 3.3 Removal and Disassembly
r:jl 1The entire powerhead, exhaust housing, and gearcase may be removed from the swivel bracket as an assembly by removing four screws 2Remove the powerhead as described in Section 43Remove the gearcase as described in Section 64housing the water tube and grommet from the exhaust
f31 5Remove the two split bushings by spreading them enough to clear the exhaust housing6Remove the adjustment screw, spring, washer, wedge, and O-ring from housing clamp7Refer to Cleaning and Inspection at the beginning of this sectionAssembly and Installation