Hi Guys!!! I have a 2005 500 sportsman. The issue I am having is that it's not charging. I can charge the battery and it will start and run great. After a while the battery gets low it runs bad and then will die. The battery light will blink and the whole time the tach won't work. Any ideas were to start. This is my first atv that is a 4 stroke and has all this fancy electric stuff. I'm lost!!!!! Thanks for any help!