Well i put a new spark plug in my quad and drive it all day, it was running awesome, i parked it and shut it off because i had to work.

The next day i figured it would start right up, but no matter hoe many times i pulled the cord it just seems to have nothing.

It has spark and its getting fuel, please tell me what else could be wrong. i was told ( i dont know if its true) but i was told that if it has plenty of spark then the coil/magneto/stator are all working.

What other possible thing could prevent it from turning over. Its driving me insane, it has spark, fuel and air, what else does it need?

I just dont get how i can drive it all day without any problems (it started on every pull) then i shut it down for work and the next day it acts like it has not run in years.

Any help is appreciated.