Hey guys! I have been working on this '07 Foreman 500 that I picked up. I finally got her up and running good, but now I'm sure the 4x4 is not engaging. The light on the dash does not come on in either on or off positions and I do not hear the front diff locking in. I've started by checking to make sure I have power to the switch on the handlebars. Yes, it does get power and also sends power when the switch is moved to 4x4. Where do I go from here?? Are there sensors or something that keep it from engaging?? Totally lost here. Please help!!