1993 Johnson Evinrude "ET" Electric Outboards Service Manual, P/N 508280, Page 137Get this manual
Rotary Switch ServiceExcept HBF2 Removal []] 1Push plastic shaft back from the switch with flat blade screwdriver
rn 2Loosen the nut retaining the rotary switch []] 3Remove the switch from the mounting bracket and unsolder the electrical wires[]] 4If required, the speed control wheel can be removed by pushing the plastic shaft out of the wheel and pedalInstallation []] 1Attach the switch wires using the diagram at the end of this section for correct wire routing and locations