I know my bike is OLD and antiquated, but I'm not going to buy a new one. Yesterday we were riding in some deep sand and I have to fight my bike to keep it pointed where I want to go. We all switched and rode each other's bikes and everyone said mine was very hard to ride. Is there something I can do, setting wise to help it? My son's '06 YZ450 sits a lot lower than mine in the back, and his was way more stable than mine.