Small Engines (Lawn Mowers, etc.): scotts mower, briggs and stratton, magic answer

Question
i have a scotts' 6.0 hp 2n1 convertible mulcher with a briggs and stratton motor. it was working fine and all of a sudden it won't start. priming it doesn't help and i have tried pouring gas right over the carburetor. changed the spark plug and that didn't help either. any suggestions?

Answer
No secret magic answer on this one John.

Do you have any spark!?

 Remove the plug, lay it against a metal object and have some one pull the rope.  Let me know what you find.

An engine needs 4 things to run,  Fuel, air, compression and spark.  You have to find out what you are missing