Home › Forum › Ask A Member › 1981 evinrude 35hp, starts, runs, won’t shut off › Re: 1981 evinrude 35hp, starts, runs, won’t shut off
Hmmm. OK, so when you short the black ground pin to the black/yellow pin on the engine side of the plug, the engines stops, correct? If so, then it is safe to assume engine wiring and powerpack are OK. Next, I would check these two terminals on the control box side of the big plug with an ohm meter. With the key switch turned "off" the black yellow and black ground lead should show close to zero ohms resistance.
There are a few other problems to consider here also. What color is the big plug on the engine? Do the colors match on both engine and control box side? You can’t mix the black and red plugs, different wiring locations on the pins. It is right around this year, 1981, that the plug colors and wiring changed for this engine series.
Finally, you just bought this rig, and never ran it prior to changing the key switch. It would be nice to know if this problem was occurring before you changed the key switch….