1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 132Get this manual

1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 132

07 Attach ohmmeter leads to terminals "C" and "0": If meter shows 400 40 ohms, replace power pack If your test results vary,
engine harness red connector2Disconnect temperature switch tan leadf313Calibrate ohmmeter on appropriate scaleConnect between
engine harness tan lead and engine harness tan pin Note reading4Reverse meter connections or press "polarity" buttonNote
reading very high reading (00) in one direction and low reading in the other direction indicates diode is good5Replace engine