1990 Johnson Evinrude "ES" 9.9 thru 30 Service Manual, P/N 507871, Page 203Get this manual
Igl f101
5Slide the mount housing bumper into place between the lower front mount and the exhaust housingPosition the port and starboard lower mount housingsClean the threads of the four lower mount housing screws and apply OMC Screw Lock to threads of the screwsInstall the two side lower mount screws, then install the two front screws; Tighten all four screws to torque of 144-168 inIbs(16-19 Nm)muffler gasketPlace new seals on the screwsPosition the gasket and install the muffler
101 6Apply OMC Gasket Sealing Compound to new idle relief