1993 Johnson Evinrude "ET" 90 degrees CV Service Manual, P/N 508285, Page 149Get this manual
133 50Ifthe overboard water indicatorfitting has been removed from the exhaust manifold cover, apply OMC Gel Seal" to threads of the fitting before installing r:;;l 51Apply OMC Gasket Sealing Compound to new bypass cover gaskets and place the gaskets onto the cylinder blockInstall the bypass coversTighten the screws to torque of 50-84 in(5,7-9 Nm)
52Service the leaf valve assemblies as described in Section 2Install the intake manifold using new gasket