Evinrude Overheat problems

[billofbourne]

A couple of Evinrude boat engine mechanics have told me that the 1997 Evinrude 200 HP and others have a built in overheat problem that Evinrude will not acknowledge. The newer models have a change that resolves this problem. The problem surfaces at high emgine loads with the result that sufficient cooling water doesnt get to the top two cylindars and they eventually fail due to overheating. One remanufacturer told me they resolve the problem with a machined in correction during the rebuild process. They claim thast their solution has been incorporated into the newer Evenrude engine blocks. Can anyone else verify this problem or share their experiences with us?

[rudetech1]

There is a service bulletin the tells them that the engines benefit from increasing the high speed jet to allow the engine to run cooler. A good water pump, run the engine at 5500 rpm, good thermostats and you are good. Do not overprop it, do not under prop it. Do not run the engine to high on the jack plate.

[ChampioNman]