Two things I have run into. 1) I recently put a forged Wiseco piston in my 02 YZ250. The piston instantly cold scuffed on start up. Anyone else had this? 2) I have been running a Wiseco crank for over a year now and just found out they may be 4 degrees retarded from OEM. True or false? Im going to check timing regardless once the top end comes back.