Sooooo, I was trouble shooting the lighting on my 2002 YZ426 last night....It's street legal, with a Baja Designs dual sport kit, and an external E-Line stator. Blaa blaa blaa...I pulled off the external stator, and the flywheel nut was loose. Gee, I wonder why the lights weren't working, since the flywheel weight was just spinning freely. I'm guessing that maybe I didn't get it on tight enough when I installed it a few years back?? I mean, there's no reason why it should come loose right? Anyway, I loaded the bike up on my Joe Hauler and took it over to my buddy's house to tighten it up with his impact wrench, and don't you know that the end of the threaded shaft snapped. Not good right? &!@*&%@$%. I've been searching through posts, looked through the manual and Googled the hell out of this, trying to figure out if the threaded shaft is actually part of the crank or is it connected some other way. From what I can tell, it is part of the crank. I haven't done a bottom end on this bike, so I don't really know for sure. My guess is that I'll have my engine spread across my work bench this weekend right? Do I need to replace the whole crank...and various other? I'm the original owner, and the bike isn't beat up, so I wasn't really expecting to do a bottom end quite yet. I've only just gone through my first set of tires (and a paddle), 1/2 way through the first set of brakes, and the valves are still in spec from when I bought it in 2002. I've checked the valves 6 times, just last weekend being the most recent? Pretty low miles, just blasting around in the dunes a bit, and Ocotillo Wells. I've always had an extra bike or two to beat on, and figured I'd kind of take care of this one since I snuck it in and got it street legalized back at the end of 2002 if you know what I mean? In summary, I'm looking at a bottom end huh? Just thought I would toss it out there for a few opinions before I went crazy ripping it apart. Thanks in advance for your comments.