1989 Johnson Evinrude "CE" 9.9 thru 30 Service Manual, P/N 507754, Page 152Get this manual
Installation10, 14
1Apply OMC Gasket Sealing Compound to new exhaust housing to powerhead gasketPlace the gasket over the studs of the powerhead
2Apply Permatex No.2 sealer to the machined diameter of the lower crankcase head