dirt bike problems kawasaki km 100?

[James Nicholson]

i was riding the dirtbike down the road and it just died and started smoking from the head i took the spark plug out and it was white so i cleaned it up and still nuthing a guy said i couldof destroyed the piston so i took the head off and its just wore a lil but thats probably normal for a 1978 so i dont know what is wrong with it it was running perfect then this happened please any help will be very appreciated

 

[Jake]

You probably did "fry" the piston a bit white on a spark plug usually means burnt aluminumn from the piston. Which you can order the piston rings from wisco. But make sure its the piston, not the spark plug or you could waste your money.