I recently purchased a 2001 YZ250....that turns out to be a 2001 bike with a 2000 engine in it. Oh and the left side of the crankcase is cracked behind the flywheel. My pops' buddy took it apart to clean the case out and he discovered welding and epoxy holding it together. You can only imagine how thrilled I was to hear the news.
Needless to say I need a new left side crankcase. Does anyone know where I can get one for cheap? Also, would the 2001 left side case fit?