1998 Johnson Evinrude "EC" 90, 115 SPL Service Manual, P/N 520209, Page 156Get this manual
9Install the front rubber mount screws and washersBe sure to install the groundTighten screws to torque of 60-84 inIbs(7-9 Nm)
10Install the front exhaust housing cover to the lower engine cover screw
Important Retorque all powerhead to exhaust housing fasteners after engine has been run and is cool to the touch11Install the rear exhaust housing cover to the lower engine coverTighten the screws to torque of 60-84 in Ibs(7-9 Nm)12Install the front exhaust housing cover to rear exhaust housing cover screws 13Connect the thermostat hoses to the cylinder heads14Models with fuel pumpinstall the fuel hose and secure to the fuel pump