1997 "EU" Johnson Evinrude 5 thru 15 Four Stroke Service Manual, P/N 507262, Page 319Get this manual
1 DRC6802
DRC6803
Rectifier Ohmmeter Tests9.9 (211 cc)
INote Disconnect battery cables before proceeding with this check
rn 1Disconnect all rectifier leads from engine wiring harnessrnother lead ohmmeter on appropriate scaleNote the readingReverse cleanohmmeter connections or 2Calibrate Connect one lead to engine groundConnect the to the rectifier yellowblue leadthe
press the "reverse polarity" button and note the reading high reading in one direction and low reading in the other direction indicates the diode is OK Two high readings or two low readings indicate the diode is damaged