
When it comes to professional-grade chainsaws, Stihl is a name that commands respect in the forestry and landscaping industries. Among its many models, two stand out for heavy-duty work: the Stihl MS 461 and the Stihl MS 500i. While both are highly capable saws designed for tough jobs, they differ significantly in terms of technology, performance, and user experience. This article will break down their features, compare them side by side, and help you decide which is the right tool for your needs.

1. Overview of Each Model
Stihl MS 461
The Stihl MS 461 is a tried-and-true workhorse. It has been a favorite among loggers and tree care professionals for years, known for its reliability, durability, and mechanical simplicity. As a traditional carbureted chainsaw, it appeals to users who prefer manual tuning and fewer electronic components.
Stihl MS 500i
The Stihl MS 500i is a newer model that represents a leap forward in chainsaw innovation. It’s the first chainsaw in the world to feature electronic fuel injection (EFI), which sets it apart from all other models. Designed for maximum power-to-weight ratio, this saw is built to perform under extreme conditions with minimal user effort.
2. Engine Performance and Power
MS 461:
- Engine: 76.5 cc
- Power Output: 4.5 kW (6.0 hp)
- Max Speed: ~13,500 RPM
- Fuel System: Standard carburetor
- Weight (without bar and chain): 6.7 kg (14.8 lbs)
MS 500i:
- Engine: 79.2 cc
- Power Output: 5.0 kW (6.7 hp)
- Max Speed: ~14,000 RPM
- Fuel System: Electronic fuel injection
- Weight (without bar and chain): 6.2 kg (13.7 lbs)
In raw numbers, the MS 500i edges out the MS 461 in engine displacement, horsepower, and speed. But the real magic of the 500i lies in its acceleration and throttle response. Thanks to EFI, it goes from idle to full power almost instantly. The MS 461 is no slouch, but it can’t quite match the responsiveness of the 500i.

3. Weight and Power-to-Weight Ratio
Weight is a critical factor for professionals who spend hours with a saw in their hands. Surprisingly, the more powerful MS 500i is lighter than the MS 461, thanks to optimized design and modern materials.
- Power-to-Weight (MS 461): ~0.67 kW/kg
- Power-to-Weight (MS 500i): ~0.81 kW/kg
That makes the MS 500i not only more powerful but also more efficient in how it delivers that power. For tasks like bucking large logs or felling trees, this can mean less fatigue and faster work.
4. Starting System and Ease of Use
One of the most noticeable differences between these saws is how they start.
- MS 461: Traditional pull-start with decompression valve.
- MS 500i: Electronic fuel injection makes cold starts extremely easy, often requiring only one or two pulls. It adjusts automatically for altitude, temperature, and fuel quality.
For users working in varying weather or elevation conditions, the 500i is far more forgiving. There’s no need to fine-tune the carburetor or worry about engine flooding.

5. Maintenance and Repair
MS 461:
- Easier to repair in the field.
- Parts are more readily available.
- Mechanics are familiar with it.
- Ideal for remote locations where technology support is limited.
MS 500i:
- More complex due to electronic systems.
- Requires diagnostic tools for troubleshooting.
- Fewer moving parts in fuel delivery, but harder to repair without specific knowledge.
If you’re working in remote forestry where high-tech diagnostics aren’t practical, the MS 461 may be the better choice. However, in environments where you have access to service technicians and want the latest in performance, the 500i is the clear winner.

6. Fuel Efficiency
The EFI system on the MS 500i allows it to optimize fuel delivery, improving fuel economy while maintaining high performance. Users often report longer run times per tank compared to the MS 461. However, the difference isn’t always dramatic, especially under heavy load.
That said, the MS 500i adjusts fuel consumption based on need, which prevents overuse and reduces emissions—a growing concern in both commercial and environmental contexts
7. Price and Value
- Stihl MS 461: Typically priced lower, depending on region and availability.
- Stihl MS 500i: More expensive due to new technology and features.
If budget is a major factor, the MS 461 offers excellent value for money and a proven track record. However, for professionals who prioritize cutting-edge performance, lower weight, and ease of use, the investment in a 500i can quickly pay off through improved productivity and less downtime.

8. Use Case Scenarios
Choose the MS 461 if you:
- Work in remote or off-grid areas.
- Prefer simple mechanics and easy repairability.
- Want a rugged, reliable chainsaw for daily professional use.
- Don’t need the absolute latest in performance.
Choose the MS 500i if you:
- Want the fastest throttle response and cutting speed.
- Operate in diverse climates or at high elevations.
- Prefer minimal manual tuning and easy starting.
- Are comfortable with technology and don’t mind premium pricing.
9. User Experience and Reviews
Professional users who have used both saws often comment on the effortless acceleration and lighter feel of the MS 500i. It’s also commonly praised for its smooth operation, reduced vibration, and better balance, especially with longer bars (up to 36″).
The MS 461, while a bit heavier, is often called a “tank” due to its durability and dependability. Some users even say they prefer it because it’s less reliant on electronics and therefore less likely to experience issues in extreme environments.

Final Verdict
The Stihl MS 461 and Stihl MS 500i are both outstanding chainsaws in their own right. The MS 461 offers time-tested performance with straightforward mechanics that many professionals trust and love. The MS 500i, on the other hand, represents the future of chainsaws with its fuel-injected engine, improved ergonomics, and unbeatable power-to-weight ratio.
If you want classic reliability, go with the MS 461.
If you want innovative performance and ease, go with the MS 500i.
Ultimately, the right choice depends on your specific needs, preferences, and budget. Both are built to last and designed to handle the toughest jobs in the field.