I have a 99 trailboss 250 automatic. Have not had it long and thought that I had went through it and fixed everything, wrong! Was riding in the mountains and climbing a hill it slipped gear and went into neutral and it had no brakes! nothing like seeing your kid going 30 miles an hour down a mountain backwards! may just sell it after I fix it. Does anyone know what it may be and what it takes to fix it? any insight? thanks