1989 Johnson/Evinrude Outboards 88 thru 110 150 thru 175 models Service RepaIr Manual P/N 507757, Page 180Get this manual
Quality of the image is intentionally reduced!
Installation 1 Remove the nuts from the powerhead adapter studs
6 Coat the threads of the exhaust housing to powerhead
Gel Seal 11 and install themTorque the screws in stages