Just bought a 2005 660 grizzly 4×4. I have been experiencing the body shake only when I’m going about 1-4 mph. Anything higher than that and it is fine. The carburetor was replaced in it…the idle is a little off as well. Just was wondering if anyone has ever ran into this before. It has 2400 miles and 614 hrs on it. Any guidance would be much appreciated.