Small Engines (Lawn Mowers, etc.): 5hp briggs troy built tiller, air fuel mixture, shade tree mechanic

Question
Hello I need some help with my old engine. It is a B&S model 130292,Type 1139-01 Code 82060107. It was rebuilt by a shade tree mechanic some time back and never has run right since then. It runs ok for 10 min or so then stops off. It can be restarted if you hold the carb butterfly half open then runs a  min or two then cuts back off. I read your info about the govenor adj. but the springs are missing and the hooks are broken off and just slide back and forth on the throttle shaft. do you have any idea where I can see a diagram with the springs connected? I see them in the brigs parts cagalog but the dont show where they are suppose to hook up. I would buy a new power up engine if I could find one but I have had no luck with that either.Please help me. Thanks HIII

Answer
Hello Harvey:

I have Not Located Any Pictures that Show the Governor Linkage for this Engine. However, this May Help. **The Throttle Cable Attaches to the Throttle Control Bracket. The Cable Moves a Slide that Moves a Pivot. The Pivot has the Spring  Attached to it and the Other End of this Spring Attaches to the Governor Arm. The Solid Link Connects to the Governor Arm and goes to the Throttle Shaft on the Carburetor.  When the Throttle Cable is Moved it Moves the Pivot and the Pivot Pulls the Spring. The Spring Pulls the Governor Arm and the Governor Arm Moves the Throttle Shaft. Usually the Spring is in the Lower Hole in the Governor Arm and the Solid Link is in the Top Hole of the Governor Arm.** The Governor System Behaves like an Unending Tug of War between One of Two Governor Springs, which Pull the Throttle Toward the Open Position, and a Spinning Crankshaft, which Tries to Close the Throttle. When the Load on the Engine Increases - a Typical Example is when you Move your Running Lawn Mower from the Driveway to the Grass - Crankshaft Revolutions Drop. But the Governor Spring is Still Tugging, Causing the Throttle Plate to Open. In Response, a Larger Volume of Air-Fuel Mixture Enters the Carburetor, Increasing Engine Speed to Compensate for the Increased Load. The Crankshaft Speeds Up, and the Tug of War Resumes, until a New Equilibrium is Achieved. With Each Change in Load, the Tension Between the Governor Spring and the Load Brings about a New Equilibrium, known as the Engine's Governed Speed. Neither Side Wins until the Engine is Shut Off. At that Point, without the Crankshaft Spinning, the Governor Spring Pulls the Throttle to the Wide-Open Position. Two Types of Governors are Common on Small Engines - Mechanical and Pneumatic. This Engine has the Mechanical Governor. You can Use the Guide for a Replacement Engine that can be Accessed from this Site Addy; http://www4.briggsandstratton.com/miscpdfs/RNT/2007%20Replacement%20Engine%20Spe... . This is a 32.02 MB PDF File. 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

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Respectfully

John