1992 Johnson Evinrude "EN" 9.9 thru 30 Service Manual, P/N 508142, Page 165Get this manual
48 32Lightly coat both sides of new cylinder head gasket with
OMC Gasket Sealing CompoundInstall the gasket and cylinder head Tighten the cylinder head screws in stages to the final torque of 216-240 in Ibs(24-27 Nm), following the sequence shown
49 33Install the thermostatspringand isolator in the
cylinder head
50 34Install thermostat cover and O-ringTorque screws to
60-84 inIbs(7-9 Nm)
35Apply OMC Gasket Sealing Compound to both sides of two new exhaust cover gasketsInstall the inner and outer exhaust coversTighten the screws to torque of 95-130 in.lbs(11-14 Nm), starting with the center screws52 36If the overboard water indicatorfitting has been removed
from the exhaust cover, apply OMC Gel-Seal" to the fitting threads before installing37Apply OMC Gasket Sealing Compound to both sides of new bypass cover gasketInstall the bypass coverInstall and tighten the screws to torque of 60-84 inIbs(7-9 Nm), starting with the center screws