The Stihl BR 800 is a highly regarded backpack blower known for its powerful performance and efficiency. However, like any piece of equipment, it may encounter issues over time. Below is a comprehensive guide outlining common problems associated with the Stihl BR 800, their possible causes, and recommended solutions
Common Problems and Solutions for the Stihl BR 800
1. Engine Won’t Start
Possible Causes:
- Empty or contaminated fuel tank
- Clogged fuel filter
- Faulty spark plug
- Stale fuel or incorrect fuel mixture
Solutions:
- Check Fuel Levels: Ensure the fuel tank is filled with fresh, properly mixed fuel (generally a 50:1 ratio of gasoline to oil).
- Inspect the Fuel Filter: Replace the fuel filter if it’s clogged or dirty.
- Examine the Spark Plug: Check the spark plug for wear or damage. Clean or replace it as necessary.
- Use Fresh Fuel: Drain any stale fuel and refill with new, properly mixed fuel.
2. Rough Idle or Stalling
Possible Causes:
- Incorrect air-fuel mixture
- Blocked air filter
- Clogged fuel lines
Solutions:
- Adjust the Carburetor: If the air-fuel mixture is incorrect, adjust the carburetor settings according to the user manual.
- Clean the Air Filter: Remove and clean or replace the air filter to ensure adequate airflow.
- Inspect Fuel Lines: Check for any obstructions in the fuel lines. Replace any damaged or clogged lines.
3. Loss of Power or Performance
Possible Causes:
- Dirty or clogged spark arrestor
- Clogged muffler
- Deteriorating fuel line or fittings
Solutions:
- Clean the Spark Arrestor: Remove and clean the spark arrestor screen, which can become clogged over time.
- Check Muffler: Inspect the muffler for blockages. Clean or replace if necessary.
- Replace Fuel Lines: If the fuel lines appear cracked or worn, replace them to ensure proper fuel delivery.
4. Excessive Vibration or Noise
Possible Causes:
- Loose components or mounts
- Damaged fan or impeller
- Worn engine mounts
Solutions:
- Tighten Loose Parts: Inspect all screws, bolts, and components for tightness and security. Tighten any loose parts.
- Check the Fan and Impeller: While you should inspect for damage, if the fan or impeller is warped or broken, it will need to be replaced.
- Examine Engine Mounts: Inspect the engine mounts for wear, replacing them if they are deteriorated.
5. Fuel Leakage
Possible Causes:
- Damaged fuel tank or fuel lines
- Loose connections
Solutions:
- Inspect the Fuel Tank and Lines: Check for any cracks or leaks in the fuel tank and lines. Replace any damaged components.
- Tighten Connections: Ensure that all fuel connections are secure and free from leaks.
6. Starting Issues in Cold Weather
Possible Causes:
- Incorrect fuel mixture
- Dirty spark plug or air filter
- Weak spark from the ignition system
Solutions:
- Check Fuel Mixture: Make sure you are using the appropriate fuel mixture for colder weather.
- Clean Components: Clean or replace the spark plug and air filter to improve starting performance.
General Maintenance Tips
- Regular Cleaning: Regularly clean the air filter and spark arrestor to maintain airflow and performance.
- Fuel Quality: Always use fresh fuel and follow the manufacturer’s recommendations for fuel-to-oil ratios.
- Inspection Schedule: Establish a routine inspection schedule for your blower, checking for loose parts, leaks, and wear.
The Stihl BR 800 is one of the most powerful backpack blowers in the Stihl lineup, designed for professional landscapers and heavy users. Below are the key specifications and features that define the Stihl BR 800.
Stihl BR 800 Specifications
| Specification | Description |
|---|---|
| Engine Type | 4-Mix® engine |
| Displacement | 79.9 cc |
| Power Output | 3.8 kW (approximately 5.2 hp) |
| Weight (without fuel) | 11.9 lbs (5.4 kg) |
| Air Volume | Up to 912 cfm (cubic feet per minute) |
| Air Speed | Up to 236 mph (approximately 379 km/h) |
| Fuel Capacity | 47.3 oz (1.4 liters) |
| Fuel Ratio | 50:1 (gasoline to oil) |
| Max Engine Speed | 8,000 RPM |
| Sound Pressure Level | 104 dB(A) |
| Sound Power Level | 109 dB(A) |
| Vibration Level | 2.5 m/s² (left) / 2.8 m/s² (right) |
| Starting System | Easy2Start™ |
| Throttle Control | Variable speed throttle |
| Handle Type | Ergonomic handle with easy-to-reach controls |
Features
- 4-Mix® Engine Technology:
- Combines the benefits of two-stroke and four-stroke engines, offering reduced emissions while maintaining power.
- High Airflow and Speed:
- Designed for maximum performance with high air volume and speed, making it efficient for clearing leaves, debris, and grass clippings.
- Comfortable Backpack Design:
- Ergonomically designed shoulder straps and back padding for extended use, creating comfort even during long work hours.
- Easy2Start™ System:
- A simple and reliable starting system that ensures easy startup with minimal effort.
- Adjustable Throttle:
- Allows for precise control over the blower speed, accommodating various cleaning tasks.
- Advanced Filtration System:
- Enhanced air filtration to prolong engine life and maintain optimal performance.
- Low Emission Levels:
- Meets stringent emissions standards while delivering powerful performance.
Conclusion
The Stihl BR 800 is a powerful backpack blower that, when maintained properly, can provide exceptional performance for landscaping and cleanup tasks. By recognizing common problems and their solutions, you can keep your equipment running smoothly and efficiently. Implementing regular maintenance and addressing issues promptly will enhance the longevity and reliability of your Stihl BR 800. If problems persist despite troubleshooting, consult a qualified technician or authorized service center for further assistance.
I’m David man behind Lawn Mowerly; I’ve been dealing with lawnmowers and Tractors with my father since I was a kid. I know every make and model and what each one is capable of and love helping people find the perfect equipment for their needs.