2000 Johnson/Evinrude SS 25, 35 3-Cylinder outboards Service Manual, Page 216Get this manual
Start Switch Ohmmeter TestsTE Models Disconnect the two switch leads from the starter solenoidCalibrate ohmmeter on appropriate scale Connect one meter lead to switch yellowred lead, the other meter lead to switch red leadDepress switchMeter should show: Low reading when the switch is depressed High reading when the switch is released Replace the start switch if your test results vary