Why did my bike just cut off

I have a kx85 2 stroke i was riding my bike yesterday day and as i was riding it just cut off on me and the back tire started to slide and it won't started no more what can be wrong
 
Noo it jus slided once it stop i was able to put it neutral but it would not start wen i tryed to kick it or run and jump start it it start up nd cut rite back off
 
Another "grasshopper", on the eternal quest for the silver bullet.

" alas, and fret not young grasshopper. Know in your soul that your 21 year old neglected and abused engine is just how the planets and spirits determined it should be: Trashed."
 
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