Not sure what happened, but went to start the boy's 50 Kazuma and it just cranks and cranks. I pulled the plug out and cranked it and nothing. I held the plug to the frame and nothing. Where do I start to figure out what is wrong?

 

I good start would be to check all the safety switches. I have had problems with the one near the left floorboard area, it may appear to be pushed all the way in, but not in all the way. good luck

 

The kill switch is probably the problem ...check to see if the little white plug is all the way in on the lower right hand side of the engine .