Small Engines (Lawn Mowers, etc.): Engine shuts down after 30 minutes or so, briggs stratton, hp briggs

Question
Riding mower has a 23 hp Briggs & Stratton Intek V-Twin engine. Runs for 30 minutes to an hour then abruptly hesitates/sputters and stops. Might be able to restart after a minute or two.  Then, might run short time and shut down again or engine will cycle/hunt a few times then shut down. After an hour when engine has cooled, it restarts and will run for another 30 minutes or so with no problem but then shuts down again.  Seems that it is overheating, causing it to shut down. Any thoughts on what the problem could be. New air filter, pre-cleaner, plugs, and fuel filter in May.

B&S Intek V-Twin Engine Model:  445577,  Type: 0755E1, Code 061205Y-G

Thanks for your time -

Ron  

Answer
Hello Ron:

Sorry for the Delay. This Question was Located in the Question Pool. The Following is a Basic Instruction File I made for this. Any Input is Appreciated. I Usually Suggest you Check the Following in this Order for a Problem like yours. 1- Check the Gas Tank Cap and Ensure it is Venting the Tank. A Vacuum Builds in the Tank and the Gas Flow Stops or Slows to a Point it Shuts Off the Engine. 2- Operate the Equipment Until it Quits (15 to 20min). Then Immediately Check for Fire from the Plug. If the Plug is Firing, then 3- Check the Carburetor Solenoid. If the Carburetor Shut Off Solenoid has Current, then Remove the Carburetor Solenoid and Go to the Hardware Store. Purchase a Bolt of the Same Diameter and Threads. It Needs to be 3/4" Long. Put this Bolt in Place of the Solenoid. If this Corrects the Engine Problem, then Replace the Solenoid. ***NOTE: THIS IS FOR CHECKING THE SOLENOID ONLY I NEVER SUGGEST YOU OPERATE THE ENGINE WITH THE SOLENOID OUT OF THE CARBURETOR EXCEPT FOR TESTING PURPOSES*** Sometimes the Plunger is Moving, Just Not Far Enough to Allow the Gas to Enter the Jets. 4- Depending on the Model Mower, it can Also be the Pickup Tube in the Gas Tank. If No Fire, then Remove the Shut Off Wire from the Coil and Check for Fire. If Still No Fire, then the Ign Module or Coil is Bad. On JD Mowers; Remove the Igniter/Module and the Coil and have the Local JD Dealer Test them. You can View a Breakdown/IPL of the Engine at this Site Addy; http://www.briggsandstratton.com/maint_repair/manual_and_more/doclist.aspx?categ... and Enter the Model Numbers (445577) and the First 4 Type Numbers (0755) in the Appropriate Boxes and Click GO. Then Select Download PDF. If you Hit a Snag or this Does Not Correct the Problem,  I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Thanks.

Good Luck

Respectfully

John

PS: I am Allowed to Answer 10 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Thanks.

Respectfully

John