Mastering Briggs & Stratton 20 HP Intek Carb: Throttle and Governor Linkages

The Briggs & Stratton 20 HP Intek engine is a powerful and reliable small engine often used in lawn mowers, generators, and other outdoor power equipment. Understanding the proper functioning of the throttle and governor linkages is vital for optimal engine performance and longevity.

Why Throttle and Governor Linkages Matter

Throttle and governor linkages control the speed and output power of the engine.

• Throttle linkage: Adjusts the fuel mixture to regulate engine speed.
• Governor linkage: Limits maximum engine speed by controlling the throttle position based on load conditions.

Properly adjusted linkages ensure that the engine runs smoothly, responds quickly to load changes, and operates within safe operating limits.

Step-by-Step Throttle and Governor Linkage Adjustment

Materials:

• Socket wrench
• Screwdriver
• Tachometer

Steps:

1. Disconnect the spark plug: Safety first! To prevent accidental starting.
2. Check throttle linkage: Move the throttle lever and ensure it operates smoothly. Adjust the linkage if necessary to provide full range of motion.
3. Adjust governor linkage:
   • Start the engine and let it warm up.
   • Connect a tachometer to the engine.
   • Let the engine run at full speed, and adjust the governor linkage until the tachometer reads the desired maximum engine speed (typically 3,600 RPM).
4. Tighten linkage nuts: Once adjusted, tighten the linkage nuts securely.
5. Reconnect the spark plug: Don't forget to reconnect the spark plug!

Benefits of Properly Adjusted Linkages

• Smooth engine operation: Reduced engine vibration and noise.
• Quick response to load changes: Faster acceleration and deceleration when changes in mowing or other load conditions occur.
• Extended engine life: Prevents over-revving and excessive wear on engine components.

Compare Pros and Cons of Different Linkage Types

Pros:

• Mechanical linkages: Simple and reliable, with minimal maintenance.
• Electronic linkages: Offer precise throttle control and easier adjustment.

Cons:

• Mechanical linkages: Can wear out over time and require periodic adjustment.
• Electronic linkages: More complex and expensive to install and maintain.

Call to Action

Ensuring proper throttle and governor linkage adjustment is crucial for optimal engine performance and longevity. Whether you opt for mechanical or electronic linkages, regular inspection and adjustment should be part of your routine maintenance.

By empowering yourself with this knowledge, you can keep your Briggs & Stratton 20 HP Intek engine running smoothly, efficiently, and reliably for years to come.