Small Engines (Lawn Mowers, etc.): mower has no spark, john deere lx176, rideon mower

Question
my john deere lx176 rideon mower has no spark,i have replace coil,ignitar,stator,spark plug,and still no spark.

Answer
I really have no experience with John Deere mowers, but I would ensure that the safety system isn't killing the spark. The wire that goes to the coil is from the ignition/safety system and kills the spark. I don't know if you have, but if not, try disconnecting the wire and see if you get a spark. If you do, the problem is in the safety/ignition system.