Got out a few days ago just to come around the Wiffin Spit and find it too rough in the open. So I was taking it easy on the throttle say around 2000-3000rpm you know trying to keep it on the plane without slamming too hard. The outboard temp got too high to the point where it would not rev up higher than 2000rpm. High temp alarm came on and when checking the temp found it at 89deg Celsius. Is has happened before, took it at the Mercury Marine they changed the water pump, checked the thermostat all looked clean they said no problem. Anyone out there with the same problem? When at cruising speed temp in the motor shows between 29-31 celsius. Thanks JUST FISHEN'