Motor shuts down sudden after 15 to 20 minutes run

SOURCE: Briggs and Stratton 17HP Intek Governer Overspeeds

Can you Regulate the Engine Speed Using the Governor Arm? If Yes, then Reset the Governor. **To Reset the Governor; Loosen the Governor Arm Bolt and Turn the Governor Shaft Clockwise Until it Stops. Using the Governor Arm Hold the Carburetor to Full Throttle. Now with the Shaft Full Clockwise and the Governor Arm and Carburetor Held at Full Throttle, Tighten the Governor Arm Bolt. If the Engine Still Runs Full Throttle, then Reverse the Rotation of the Governor Shaft, but Still Hold the Carburetor at Full Throttle with the Governor Arm. If it Still Runs at Full Throttle, then Check the Internal Governor.** If you Can Not Regulate the Engine Speed Using the Governor Control Arm, then Check the Carburetor Throttle Valve. If the Throttle Control Valve (sometimes called a Flap or Plate) Mounting Screws Came Out of the Control Valve, then you will have No Control Over the Engine Speed. Send me the Model and Type or Spec Numbers Off the Engine, Please. With these I can Locate the Proper Manual and Better Assist you. **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 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.** 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

SOURCE: I have a 17HP mtd yardmachine riding mower. the

MTD HUFFY 15HP BRIGGS

SOURCE: 17hp ohvfitted to ariens 1742

The oil is passing the rings on the pistons and is therefore being burnt in the ignition process. In the combustion cylinder.
The valves may also have been bent in the process, one would need to check these to get the engine to run well again. Any bent valves will cause a loss of power.

Take care!
damnor01

SOURCE: riding mower with 26hp briggs and stratton motor runs about 20 to 30 minutes thens cuts out

It sounds electrical in nature check the solenoid for continuity, check your key switch it may be bad also, check the spark plug wires and the part they hook into. Look for melted wires and replace as needed.

jerryblakesl

• 29 Answers
• Posted on Aug 09, 2012

SOURCE: my briggs and stratton twin

I would check the deck ( while engine NOT running) to make sure there is no binding from any of the idler pulleys or from the mandrels...