Cleaned carb on bike then started it   it revved up then stopped now won't turn over . What you think has happened? 

Revved a bit, or screamed its nuts off ? Take the plug out and try again. 

Screamed it's nuts off lol

Won’t turn over as in motor locked up and won’t spin? Then seized which is unusual. 

Won’t turn over as in won’t start? Sheared woodruff key on ignition flywheel. Fairly common.

 Nicked the piston. The rings are now stuck. Pull the exhaust and look at the piston.

and all because you did not insure the throttle slammed shut and made the proper sound after you did not get the cable back nin proper position!