1994 Johnson/Evinrude "ER" 9.9 thru 30 outboards Service Manual, Page 165Get this manual
Installation
Remove the gearcase as described in Section 6This will aid in guiding the water tube into the water pump grom-
1Install new powerhead to exhaust housing gasketInstall dry, use no sealer
f1l 2Install both grommets and water tubes in inner exhaust
tube Center water tube in grommetsDo not allow water tubes to touch inner exhaust tubePosition inner exhaust tube on powerheadTighten the screws to torque of 60-84 inIbs(7-9 Nm)3Apply liberal amount of Permatex No.2 sealer to the
l=.J machined diameter of the lower crankcase head
4Carefully lower the powerhead into the exhaust housing as follows: Install the long water tube against the exhaust tube Guide the long water tube into the water tube opening in the exhaust housing Guide the small water tube into the opening in the rear of the exhaust housing Apply OMC Gasket Sealing Compound to the six powerhead retaining screws and install the screwsTighten the six powerhead retaining screws to torque of 60-84 inIbs(7-9 Nm)&5Adjust the neutral start switch