Just got an opportunity to buy an 02 yz426 but I don't know much about them. I currently have an 03 rm250 but wouldn't mind getting a 4 stroke too. It's from the original owner who has taken care of it and is only asking a grand from me because we work together. Just wondering if it's worth it and if I should pull the trigger. Is there any thing I may need to know about them to help me make a good decision?