1990 Johnson Evinrude "ES" Electric Trollers Service Manual, P/N 507869, Page 38Get this manual
8Turn the switch to speed The meter must show continuity when the second lead is connected to the GREEN 18 ga olead The meter must show no continuity when the second lead is connected to the GREENWHITE 18 gao and RED 14 ga oleads9Turn the switch to speed The meter must show continuity when the second lead is connected to the RED 14 gao lead The meter must show no continuity when the second lead is connected to the GREEN 18 gao and GREENWHITE 18 gao leads10Replace the switch or wiring harness if your test results vary11Refer to Section for assembly informationResistor Wire12 Hand Control Models To avoid damaging components or troubleshooting equipment, disconnect the battery cables before proceeding 134 1Remove steering housing cover2Use an ohmmeter calibrated on low ohms scale to test the condition of the speed resistor wire3Turn the speed control switch to the "OFF" position