1979 Evinrude 55 hp 55975C alarm horn from the controls..

[Christof86]

hey everyone,
I have the alarm horn going off from my controls, as far as I know that means its over heating? but I have water comming out of the back and its only warm? maybe the thermalstat is shot? any info is appreciated..

 

[saltchuckmatt]

hey everyone,
I have the alarm horn going off from my controls, as far as I know that means its over heating? but I have water comming out of the back and its only warm? maybe the thermalstat is shot? any info is appreciated..

Tell tale only means it's pumping motor can still overheat. Could be stat, could be plugged passage ways, could be bad sensor. Easiest way is shoot the head with a thermal gun.