[spareparts]

if the heads are cool, i'd make sure that it is indeed overheating, the sensor for the temp is located in the head, while it is posible for it to overheat in a small area( around the sensor) its unlikely to happen, it could be cooling off before you get the boat off plane and get back to the powerhead to check it. Try this, disconect the sensor wire to the temp alarm( tan/blue stripe I think) run the engine again and see if the alarm goes off again, if it does, and your sure you disconected the over heat sensor, then you've got something else going on