Small Engines (Lawn Mowers, etc.): 18.5 horse Sears Tractor, safety switches, seat safety

Question
I have a 2004 Sears 18.5 Tractor. Was using it. Worked fine. Shut it off and now it won't start. Replaced plug. Smells like gas. Thought it was flooded. Does not seem to be firing. Turns over fine. Wire loose somewhere? Bad fuse? Can't think of what it is.

Thanks

Answer
 Hello Dan:

 Check the Seat Safety and Blade Safety Switches. Send me the Model Numbers Off of the Mower and the Engine, Please. With these Numbers I can Locate a Breakdown of the Mower and Engine and Better Assist you. Check the Oil for Gas Smell. Hope this Helps. Let me know what Happens, Please. I enjoy knowing the Outcome. Thanks.

 Good Luck

 Respectfully

 John