Today my wife was riding her bike to work about 15 miles away and her engine seized up. Was a pain in the ass to pull the motor apart, the metal was all melted together. Swapping the motor out for a new one tonight when I get out of work at midnight. I estimate it ran for about 850 miles before the failure. Mixing at 32:1 and it was stock. I plan on adding a 6.0 cc head and a banana pipe for the next motor tonight. I hope that should keep it cooler. I have a spare reed somewhere too but last time I tried it I didn't like it on my bike.