Ok, in my reading about KLR's over the years, I've heard all about the doo-hickey replacements. I have known in the past what that involved and why it was needed, but now can't remember the details. And how necessary is it on the new generation KLR's? The one I bought is an `09 with 1700 miles. I've wanted a KLR for a long time, but came up on this one at a bargain unexpectedly after selling the bike I had a little quicker than I thought I would. Everything just fell in to place pretty quickly this time. Fill me in on the details and also what happens when it fails. Thanks for your patience as I'm sure it's been discussed many, many times on here.