I have a 100hp Evinrude. It's been running fine, aside from some idle problems, but when i start the engine it makes a horrible screetch. This usually happens when i'm turning the key and the starter is trying to start it but then it kicks out and all that remains is a horrible loud screetch until i stop turning the key. This also happens when the motor actually does start, but only until I let go of the key. Any ideas of what this is? Does somthing need to be lubed?<br />Thanks