" Can anyone help me. My 1989 40 horse Evinrude has an alarm that goes of after running the boat 2-3 minutes in or out of the water. It goes off and on about every other second. Oil reservoir is good and I unpluged the beige wire from the reservoir and the alarm continues but if I ground the same beige wire on the engine side then the alarm goes off. Can anyone tell me what this means? It is not the temperature switch.