1995 Johnson Evinrude "EO" 60 LV 90, 115, 150, 150C, 175 Service Manual, P/N 503151, Page 282Get this manual
Motor Test, No Load
f'N"=J Securely fasten motor in suitable fixture before proceeding with this test1Use battery rated at 360 CCA (50 amp-hrs) or higherThe battery must be fully chargedRefer to Battery Specifications, Electrical Section2Connect 0-50 amp ammeter in series with the battery's terminal, ammeter RED lead toward battery
3Attach or hold vibration or mechanical tachometer to the motor while performing this test4Monitor motor RPM and current drawRefer to the chart below for the correct specifications for your motor