1990 Johnson Evinrude "ES" 9.9 thru 30 Service Manual, P/N 507871, Page 190Get this manual
Inspection 1Inspect the throttle cable for kinks and wearReplace if necessary2Inspect the steering handle components for wear, cracks and other damageReplace damaged parts3Refer to Section 3, Ignition System, to test the stop switchAssembly 1a1 1Install the stop switch assembly into the inner handleThe tab on the button goes into recess of the inner handleC0A2668
throttle cable seal and Insert In recess
over the stop button wires
f101 3If removed, apply Locktite Depend Adhesive to inner handle at areas shownf111 4Install the metal outer handle over the plastic inner handle and drive the outer handle into placef12I 5Secure tab of the inner handle into recess of the outer handle with the steel pin