I have been debating buying a YZ450 or a WR450. I want the low weight of the YZ, but I really want a 5 speed. Has anyone had any success removing the E-start and battery on a WR? If so, how much weight did the bike lose? My biggest concern is how to plug the hole in the cases where the starter motor connects. I know most people love having a push button start, but low weight is more important to me!