Please forgive my ignorance in regards to the following questions. This is my first boat and motor so here we go. I started the motor in large container of water and water is coming out of the pee hole, but not as well as the stream that is on my 90 hp. After I ran it for about 3-4 minutes, I noticed that the mid-section (or whatever the proper term is) of the motor was really warm. Is this normal? I am talking about the section in between the lower unit and the top or head. Thought maybe it wasn't pumping enough water and maybe it needs a new impeller. Any suggestions or ideas? Thanks for your help.