Dirt Bike FAQ

Take out the spark plug and hold the body of the plug against the cylinder pot, kick it over and see if you are getting a spark on the plug, if not try the end of the plug lead and see if you get a spark from that, if not , you have ignition troubles, if you have a book for the bike look up ignition answers to the problem.
If the ignition is alright see if the fuel line is in order and fuel is getting to the carburetter, and the float is not stuck down, or you have water in the carb, or dirt, also your fuel filter clean, or needs cleaning.