1997 Johnson Evinrude "EU" Accessories Service Manual, P/N 507270, Page 90Get this manual
Troubleshooting with an Ammeter Careful analysis of the electric motor's current draw and trimtilt unit operating speed aids evaluation of the electric motor and certain mechanical componentsUse battery rated at 360 CCA (50 amp-hr) or higher that is in good condition and fully charged to perform this testThe specifications contained in the Performance Chart are for static hydraulic tests Do not attempt to perform the following tests while the boat is moving
1Connect 0-100 amp DC ammeter in series between the battery side ofthe starter solenoid and the RED 14-gauge lead