I have Mercury 115 1995.Runs good. Dosent seem to be overheating but the alarm is constantly sounding when key is on. Even after the boat has sat in driveway all night.<br /><br />My guess is the temperture sensor is bad?<br />I unhooked the sensor and alarm stopped.<br /> <br />I have ordered one. But how do you get the sensor out of the head.It has a cover with a screw.and the sensor is rubber where the wire goes in.<br />Do I pry out the sensor?<br />I have ordered a manual.