As the title says I'm looking to buy a used YZ250. I'm thinking 2006 or newer but really don't have much knowledge about these bikes. This bike will be mostly for trails. I had a 1996 yz125 sometime around 2001 but I was really young. I want to get back to the manic mayhem that two strokes can be. What should I look for in a used bike? Any problem years? Any weak spots on the bike in a particular year? How many hours do they usually go between rebuilds? What does a basic top end rebuild take and cost? Anything else you can recommend? Also this is my first post here so fyyff!! I may ride a little fast and someday it may catch up and bite me in the ass but maybe not if I give it a little gas.