Hi guys! I'm working on my dads 2006 660 rhino its all stock but its got a big problem when trying to take off you have to give it half throttle to move like the brakes are holding it back but you can take it out of gear and it rolls fine the things i have done to try to help the problem is put a new belt on it the old one was pretty narrow compared to the new one but still takes alot of gas to get it going and its even like this in low range and i went ahead and put new brakes all around i don't know the miles or hours because it don't have a speedo any suggestions on what it could be?? Or is this the same for all stock 660s? Thanks