Hey I hate to start another topic on this but honestly there is almost too much information to sort through. I know this. I need the following for my 02 yz426 to swap to the auto decomp cam. Cam 5TA-12180-00-00 The plug that they sell in the store. My question is what shims do I need? Should I buy the kit or just get the exact shim from my dealer after I get the cam in and valves checked. Is there a certain shim that most bikes use or does it vary from bike to bike? Thanks for all replys.