Overheat alarm 1991 Evinrude 90hp

[tnduc]

I was able to get everything installed. However, as soon as I turned the key the overheat alarm went off. What do I need to do now? It didn't go off last time I turned the key while the engine was cold.

 

[emdsapmgr]

Defective horn or horn circuit?

 

[jakedaawg]

Verify that the motor is actually overheating, laser temp gun will work. Assuming its not overheating check for faults to ground in the tan wire,

 

[ondarvr]

Disconnect the tan wire and see if it stops, then check the sensor, there should only be continuity between the leads when it's hot. As in over heating