OK, so I had a great last ride in Az with my closest buddy before moving to Ut this past weekend. The down side to this story is that in the last half mile of our ride my trust WR400F (99) blew up. There was a total engine failure. I plan to start ripping her down this weekend to have a look. I am wondering what everyone thinks my have happened to cause this and what the problem might be. There was a loud noise that sounded like fast rattling as if the rod was hitting the side of the cylinder. The kick starter is frozen but the trans will shift, the rear wheels. I think it to be broken connnecting rod because I always thought that if the crank became frozen the rear wheel would lock up. Did it maybe drop a valve?? I already have a new cylinder and 94mm JE Piston so I do plan to fix her. Any ideas on cause, fix, aftermarket mods to include to bullet proof the motor. I know there are better bikes out now and I could just replace her but this bike just fits me really well and I don't see the need. Folks, I'm interested hear what everyone thinks and I'll be updating my progress,so weigh in! Thanks--------------RICHIE YOUR DA MAN!!!