Small Engines (Lawn Mowers, etc.): snapper rider will not start, snapper rider, incoming post

Question
I HAVE A SNAPPER SR1433 RIDING MOWER (14.5 hp).
IT RUNS GREAT BUT ALL OF A SUDDEN IT WILL NOT START. I HAVE 12+ VOLTS COMING OUT OF THE BATTERY AND ALSO ON THE INCOMING POST OF THE SOLENOID BUT NOTHING ON THE OUTGOING POST WHEN I TURN THE KEY. FUSE IS NOT BLOWN. I THINK IT MAY BE ONE OF THE SAFTEY SWITCHES. I JUMPED THE WIRES TOGETHER ON THE SWITCH UNDER THE SEAT BUT I GET THE SAME RESULTS WHEN TRYING TO START. I WOULD THINK THAT WOULD RULE OUT THAT SWITCH. THERE IS ALSO A SWITCH ON THE BRAKE BUT IT HAS FOUR WIRES SO I AM NOT SURE HOW TO JUMP IT TO TEST IT. CAN YOU HELP ME WITH THAT, OR CAN YOU THINK OF ANYTHING ELSE IT MAY BE. THERE IS ALSO A BLACK PLASTIC BOX THAT HAS A RED, GREEN, BLUE, & WHITE WIRE GOING INTO IT. DO YOU KNOW WHAT THIS IS AND HOW TO TEST IT ALSO. THANKS, CHRIS

Answer
 Hello Chris:

 To View the Electrical Diagram for this Mower I Require All the Numbers Off the Mower Frame, Please. I Think you are talking about the Relay for the Safety Switches. The 4 Wired Plug for the Brake/Clutch is Jumpered Either Straight Across to or Side to Side. With the Numbers I can Tell you How to Test the Relay. This Depends on the Model Numbers. Hope this Helps. Let me know what Happens, Please. Thanks.

 Good Luck

 Respectfully

 John