1990 Johnson Evinrude "ES" Electric Trollers Service Manual, P/N 507869, Page 89Get this manual
Static Testing Continuity Test
l=.J high ohms scaleGround one ohmmeter lead to the motor
frameMove the other ohmmeter lead between the red and green leads from the motor Ohmmeter should indicate infinityoo If continuity is indicated; brushes, wiring or armature might be groundedRefer to Electric Motor Servicing, Page 5-81Connect torque wrench to the motor shaftActivate the test circuit and note the voltage, torque, and current drawNo load Test 2Connect the test circuit, and note the amperage and voltage readingsrJl 3Use vibration or mechanical tachometer to measure the motor RPM4Compare the values, as tested, to the chart belowStall Torque Test