I've read a lot of the forum topics and have decided I want to change my 02 WR426 from WR to YZ timing - Just to make sure, to complete the mod I need to re-jet it as if it were a YZ??? This is the only thing I'm not clear on. I want to make sure as I'm about to do a lot of work on the bike in other areas and I want to get it all done at the same time. I was just going to get the JD kit . . . Thanks for your help.