for the first time this year i fired up the boat motor, i had it in a big tub of water that completely covers the lower unit, after several minutes of cranking she finally started( its a 1988 evinrude vr4 110 hp) after starting it took awhile for it to start peeing and when it did it came out strong then decreased in strength, after running for about 10 mins an alarm started going off and the pee stream was still running but very warm to the touch and not as strong.

could it be water pump/impeller needs replaced ?

whatever it is, THIS AINT NO WAY TO START THE SEASON