I have a 2006 Sportsman 90 that will not start using the electric starter. I was able to kick start it at one time, but now that doesn't work. I replaced the battery, but it will just barely turn the engine over. I have checked the battery and it is fully charged. I also noticed the horn won't blow either. The neutral/reverse lights come on and the brake light works. I've disconnected and reconnected most every electrical connector I can reach, but still no luck. Anyone have any idea what might be causing this problem? I'm thinking it's got to be a loose connection or possibly the regulator, but I don't know how to test the regulator.