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Johnson 28 SBL Out Board

Paigepep

New member
The heat sensor is sounding even before engine is cranked. When I turn on engine it still sounds won't stop till key turned off. Water coming out is not hot.
 
for all omc motors with a overheat alarm going off when you turn the key. check the tan wire on the motor, it is shorting out somewhere. it should be coming from the head, disconnect and see if the alarm turns off.
 
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