This is an aftermarket top end for a 2000 YZ250 with about 20 minutes of runtime. The cylinder has some medium scatches that could be honed out, but would most likely be better if replated. Here is where I got the part (https://www.ebay.com/itm/157423793847). I'm selling this as is and for cheap because I cannot promise that this part can be reused unless replated. It is a bore size 66.4 Verify compatibility with your specific year before purchase.