I am experiencing starting issues on my 150hp 2000 Evinrude Ficht. The issues seems to be in the throttle, from what I can tell is that it is not recognizing that it is neutral and therefore not letting the engine turn over. If I shake the throttle I can usually get it to turn over and start with no problems. Where should I begin looking? What senses that it is in neutral and what color wire/wires is it? Thanks for all the help!