I had a couple bikes between my GT550 and my Morini a Pan that was someone elses nightmare and spent more time broken down than running and a 77 Yamaha DT100. The Yamaha was a fun bike but never street legal, just beat the crap out of it in the dirt. Ran for years with a broken crankcase half. The kick start quit working when the crankcase cracked and I push started it. Mag cover was mostly screen and bondo , primary cover was cracked and JB Welded, no sprocket cover, rear fender smashed from botched jumps and wheelies etc.... What finally killed that bike is I loaned it to a friend when I was on an involuntary vacation and he forgot a 2 stroke needed oil in the injection system, broke a ring.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!