What could be causing my problems on my brute? It's hard to change gear in it and I have to rock the atv forward/backward to get the gears changed. RPMs seem fine. CVT belt is worn out/has cracks and is pretty loose, but doubt that would cause it. Ordered new belt but I think it might be caused by something else. Any ideas? The brute has 3500 miles/600 hours on the clock.