1996 Johnson Evinrude "ED" Electric Outboards Service Manual, P/N 507119, Page 135Get this manual
No Load Test
1Connect motor without propeller in the test circuit shown and note the amperage and voltage readings
2Use vibration or mechanical tachometer to measure the motor RPM
Notel Do not run motor out of water any longer than is necessary to take reading
3Compare the values to the chart belowNo Load Test Model RPM 12-VoltExcept HBF2 12-Volt HBF2 AMPS (Max VOLTS (Min 10.5 10.5 10.5 22 22
20002175 15001800
12-Volt High-Thrust 24-Volt
16001800 24752600
24-Volt High-Thrust
16151785