2007 Evinrude E-Tec 75, 90 HP outboards Service Manual, Page 290Get this manual
TRIM AND TILT ELECTRICAL CIRCUIT TESTS Monitor motor RPM and current draw
Trim Gauge Test
STEP Turn key switch ONUsing voltmeter, check for voltage between the trim gauge "I" and "G" terminals If no voltage, check condition of instrument harness, key switch, and engine 20 fuse If voltage, go to STEP 2
The motor shaft must rotate clockwise, as viewed from the pump end, when positive (+) is applied to the blue lead, and negative () is connected to green leadThe motor shaft must rotate counterclockwise, as viewed from the pump end, when positive (+) is applied to the green lead, and negative () is applied to the blue leadBlue lead (+) Green lead (-) Green lead (+) Blue lead (-)