1997 Johnsoon Evinrude "EU" 50 thru 70 3-Cylinder Service Manual, P/N 507266, Page 163Get this manual
1Coat driveshaft splines with OMC Moly LubeDo not coat top surface of driveshaft as lubricant here may prevent seating of driveshaft in crankshaft2Clean powerhead and exhaust adapter gasket surfacesInstall new exhaust adapter gasket dry; use no sealer
Installation
3Use OMC Universal Puller and Lifting Eye, PIN 321537, or OMC Lifting Fixture, PIN 396748, to lower the powerhead assembly into placeIf necessary, rotate the flywheel in clockwise direction to align crankshaft and driveshaft splines4Coat the threads of the exhaust housing to powerhead screws with OMC Gel-Seal II and install themTorque the screws in stages to 18-20 ftIbs(25-27 Nm)