never had it happen my self, but fixed enough of them. I;d take it back to see if they can get it covered under warrenty. who knows, it could have gotten boogered up at the factory. but most likely they will say,"Oops, should have let us do it for you" or " We can fix for you" and nail you for a bundle to tap and install a larger bolt or put in a heli-coil. if it don't work out at the stealership try this:
http://www.atvconnection.com/editor/techtips/techtip21.htm
done it a couple of times for other people and (knock on wood) them seem to be holding up.