Ultimate Guide to the Briggs & Stratton 79986 Carburetor
The Briggs & Stratton 79986 carburetor is a vital component for many lawnmowers and small engines. Understanding its features, applications, and maintenance can significantly enhance engine performance and longevity. In this comprehensive guide, we’ll delve deep into the specifics of the 79986 carburetor, compare it with alternatives, and provide you with all the information you need to make an informed decision.
Comparison of Different Types and Applications of Carburetors
| Carburetor Model | Compatible Engines | Applications | Key Features |
|---|---|---|---|
| Briggs & Stratton 79986 | 675 Series Engines | Lawn Mowers, Pressure Washers | OEM Part, Precision Calibration |
| Briggs & Stratton 799868 | 675 Series Engines | Lawn Mowers | Genuine OEM, Durable Construction |
| Hipa 799871 | Various Briggs & Stratton Engines | Lawn Care Equipment | High-Quality Materials |
| Hipa 794304 | Various Briggs & Stratton Engines | Lawn Care Equipment | Consistent Engine Performance |
| Briggs & Stratton 799583 | 450 Series Engines | Lawn Mowers | Reliable OEM Part |
Understanding the Briggs & Stratton 79986 Carburetor
The Briggs & Stratton 79986 carburetor is designed for optimal performance in a variety of small engines. Its primary function is to mix air and fuel in the correct ratio for combustion. Proper functioning of this component is crucial for engine efficiency, fuel economy, and overall performance.
Key Features of the 79986 Carburetor
- Precision Calibration: Ensures easy startups and smooth operation.
- High-Quality Materials: Built to withstand high temperatures and resist chemical corrosion.
- Testing Standards: Each unit is tested under wet flow conditions for reliability.
These features make the 79986 a preferred choice for users seeking a dependable carburetor for their lawnmowers and other small engines.
Applications of the 79986 Carburetor
The 79986 carburetor is commonly used in various applications, primarily in lawn care equipment. It is compatible with the Briggs & Stratton 675 Series engines, which are found in many popular lawnmowers and outdoor power equipment.
Popular Applications Include:
- Lawn Mowers: Provides efficient fuel and air mixture for reliable engine performance.
- Pressure Washers: Ensures consistent power delivery for cleaning tasks.
- Generators: Helps maintain engine stability and efficiency.
By understanding where and how to use the 79986 carburetor, users can enhance their equipment’s performance significantly.
Installation and Maintenance of the 79986 Carburetor
Installing the Briggs & Stratton 79986 carburetor can seem daunting, but with the right guidance, it becomes manageable. Regular maintenance also plays a vital role in ensuring longevity.
Installation Steps
- Preparation: Ensure you have the right tools and a clean workspace.
- Remove the Old Carburetor: Disconnect the fuel line and linkages.
- Install the New Carburetor: Align it correctly and secure it with bolts.
- Reconnect Fuel Line: Ensure there are no leaks.
- Test the Engine: Start the engine to confirm everything is functioning correctly.
Maintenance Tips
- Clean Regularly: Dirt and debris can obstruct fuel flow.
- Check for Leaks: Inspect connections for any signs of fuel leakage.
- Replace Gaskets: Ensure a good seal for optimal performance.
Following these steps will help keep your 79986 carburetor in top condition.
Troubleshooting Common Issues
Even with proper installation and maintenance, issues may arise. Here are some common problems and their solutions:
1. Engine Won’t Start
- Check Fuel Supply: Ensure there is fuel in the tank.
- Inspect Carburetor: Look for clogs or debris.
2. Poor Engine Performance
- Adjust Carburetor Settings: Ensure the air-fuel mixture is correct.
- Clean Components: Remove any buildup that might affect performance.
3. Fuel Leaks
- Inspect Gaskets and Seals: Replace if damaged.
- Check Fuel Line Connections: Ensure they are tightened properly.
By addressing these issues promptly, you can maintain your engine’s performance and prevent further damage.
Technical Features Comparison of Carburetors
| Feature | Briggs & Stratton 79986 | Briggs & Stratton 799868 | Hipa 799871 | Hipa 794304 |
|---|---|---|---|---|
| OEM Part | Yes | Yes | Yes | Yes |
| Material Quality | High-Density Plastic, Brass | High-Density Plastic, Zinc Plated | Zinc Plated, Brass | Zinc Plated, Brass |
| Testing Standards | Wet Flow Conditions | Wet Flow Conditions | Standard Testing | Standard Testing |
| Mounting Hole Distance (mm) | 46 (Throttle), 35 (Choke) | 46 (Throttle), 35 (Choke) | 46 (Throttle), 35 (Choke) | 46 (Throttle), 35 (Choke) |
| Diameter (mm) | Throttle: 18, Choke: 22 | Throttle: 18, Choke: 22 | Throttle: 18, Choke: 22 | Throttle: 18, Choke: 22 |
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Conclusion
The Briggs & Stratton 79986 carburetor is an essential component for many small engines. Its precision design, high-quality materials, and compatibility with various applications make it a top choice for users seeking reliable performance. Understanding its installation, maintenance, and troubleshooting can help you maximize the life and efficiency of your lawnmower or other small engine equipment.
FAQ
What is the purpose of a carburetor?
A carburetor’s primary function is to mix air and fuel in the correct ratio for optimal combustion in internal combustion engines.
How do I know if my carburetor needs cleaning?
Signs include engine stalling, difficulty starting, or poor performance. If you notice these issues, it may be time to clean your carburetor.
Can I use a non-OEM carburetor?
While non-OEM carburetors may work, they might not provide the same reliability and performance as genuine parts like the 79986.
What tools do I need to install a carburetor?
Common tools include wrenches, screwdrivers, and a fuel line disconnect tool. Ensure you have a clean workspace.
How often should I replace my carburetor?
Carburetors can last several years with proper maintenance. Replace them if you notice consistent performance issues or damage.
Is the 79986 compatible with other engine models?
The 79986 is primarily designed for the 675 Series engines, but check compatibility with your specific engine model.
What are the benefits of using OEM parts?
OEM parts are designed specifically for your engine, ensuring optimal performance, fit, and longevity compared to generic alternatives.
How can I prevent fuel leaks?
Regularly inspect gaskets, seals, and fuel line connections for wear and replace any damaged components promptly.
What should I do if my engine is running rich?
This can be due to a clogged air filter or an improperly adjusted carburetor. Clean or replace the air filter and adjust the carburetor settings.
Where can I purchase a Briggs & Stratton 79986 carburetor?
You can find the 79986 carburetor on various online retailers, including www.lowes.com, mowerpartsnation.com, and www.briggsstrattonstore.com.