I HAVE A 2001 YAMAHA RAPTOR (ATV). I KNOW YAMAHA IS AWARE OF THE PROBLEM BECAUSE THEY FIXED IT FOR 2002. EVERY 2001 RAPTOR THAT I KNOW OF HAS HAD THIS HAPPEN. I WAS RIDING MY ATV WHEN I HEARD A LOUD CLUNG, MY CHAIN BROKE AND I WENT OVER THE HANDLE BARS. THE TRANSMISSION HAD LOCKED UP. THIS IS A VERY COMMON PROBLEM WITH THE 2001 AND I FEEL THAT YAMAHA SHOULD BE RESPONSIBLE FOR THE COST OF REPAIRING IT IN THE WAY OF A RECALL. THEY KNOW THEY MADE A MISTAKE AND NOW NEED TO TAKE CARE OF THE CUSTOMER BEFORE SOMEONE GETS HURT. MY ATV HAS VERY LOW HOURS ON IT BECAUSE OF NO TIME TO RIDE. I KNOW SOME FRIENDS THAT THIS HAPPENED TO IN LESS THAN 2 WEEKS AFTER THE PURCHASE.*AK