You need 3 things
Spark , Fuel & Air
1] can you breathe , so air should not be a problem .
2] confirm youhave fuel , remove the fuel line & make sure it is pumping , make sure the carb is full & fuel squirts when you open the throttle .
3] the tough one , pull a sprak plug & crank the engine , as long as the plug is grounded you should see a spark , if not start tracing back is the coil creating a spark , are the connection cloean & tight , check inside the dist & make sure the reluctor gap is .008 . Is there power to the Ballast resistor , is the ballast rsisitor ok , power in & out , probably the first thing to check .