I woke up on a beautiful sunday morning. There was only one thing on my mind. I loaded up my bike and headed 30 miles down to the best riding area in the world. Florence sand dunes! My bike was perfectly prepped, spotlessly clean, with an 8 paddle on the back. I got there and unloaded my bike from my truck. It was 8:00 in the morning, about 65 degrees, and not a cloud in the sky. I put on all my riding gear and fired up my bike with one kick. I started heading out into the dunes, the sand was soft but not too soft. I started off by finding some big gaps. Everything was going great, no wind, huge air, it was amazing! I landed from a jump with the throttle on, and as soon as I landed my engine abruptly stopped. A quick grinding noise, and then nothing but dead silence! I was sure I seized my bike, although I wasn't sure how seeing that my jetting was on the rich side and I was running castor 927 @ 24:1. I stopped and slowly pushed on the kickstarter. Smooth with tons of compression. Interesting. Then I looked to the left and noticed that my old o-ring chain that I had been neglecting had snapped and bound up in my sprocket. I was alone, a mile out in the dunes, with a dead bike. Worst feeling ever. I started pushing 10 feet at a time and then taking a break. I'm a fairly big fit guy, but pushing a bike through the sand dunes is torture. I made it back to the parking lot a few hours later dripping in sweat. I parked my bike and started chugging nearly a gallon of water. I was just happy I got my bike out, because if you have to leave it to get help, they usually aren't there when you get back. Lesson learned. Replace parts before they break!