STIHL Fuel Injected Chainsaw – The Power and Innovation of the STIHL MS 500i
The STIHL fuel injected chainsaw represents a revolutionary leap forward in chainsaw technology. As the first chainsaw in the world with electronic fuel injection, the STIHL MS 500i sets new standards for performance, power-to-weight ratio, and cutting speed. Whether you’re a professional logger or a serious firewood cutter, the Stihl fuel injected chainsaw MS 500i delivers unmatched precision and efficiency.
In this detailed guide, we’ll explore the STIHL MS 500i price, specifications, performance, Stihl 500i problems, and how it compares to competitors like the Husqvarna fuel injected chainsaw.
What is a Fuel Injected Chainsaw?
Traditionally, chainsaws use carburetors to mix air and fuel for combustion. However, a fuel injected chainsaw uses electronic fuel injection (EFI), a system that delivers fuel directly into the engine’s cylinder with digital precision.
The benefits of EFI technology include:
- Instant acceleration and improved throttle response.
- Optimized fuel efficiency under various conditions.
- Automatic adjustment for altitude and temperature changes.
- Reduced maintenance, since there’s no carburetor to tune.
This innovation gives STIHL’s MS 500i fuel injected chainsaw a serious advantage over conventional models. STIHL 391 Chainsaw – Price, Specs, Power, and Full Review
STIHL Fuel Injected Chainsaw MS 500i Overview
The STIHL MS 500i is designed for professionals who demand both power and lightweight performance. Its fuel-injected engine delivers 79.2 cc of displacement and 6.7 horsepower, making it one of the most powerful saws in its class.
Unlike traditional saws, the STIHL MS 500i chainsaw doesn’t rely on a carburetor. Instead, sensors continuously monitor engine parameters and adjust the fuel mix automatically for perfect combustion.
This advanced system ensures:
- Smooth startup in any weather, even at high altitudes.
- Maximum cutting power at all times.
- Reduced fuel consumption and emissions.
STIHL MS 500i Price
The STIHL MS 500i price varies by country and configuration, but it generally falls in the $1,400–$1,700 USD range for the powerhead only (without bar and chain).
Here’s a general regional overview:
| Region | Average Price | Notes |
|---|---|---|
| USA | $1,499 – $1,699 | Includes standard 25” bar option |
| UK | £1,250 – £1,400 | Varies by retailer |
| Australia | AUD $2,200 – $2,600 | Includes bar and chain |
| India | ₹125,000 – ₹145,000 | Import-dependent pricing |
When comparing prices, ensure you’re purchasing from an authorized STIHL dealer, as counterfeit or non-warranted imports can cause reliability issues. STIHL Battery Operated Chainsaw: Price, Models, and Full Review (2025 Guide)
STIHL MS 500i Chainsaw Details
Let’s break down the STIHL MS 500i chainsaw details to understand what makes it exceptional:
| Specification | Detail |
|---|---|
| Engine Type | 2-Stroke, Electronic Fuel Injection (EFI) |
| Displacement | 79.2 cc |
| Power Output | 6.7 HP (5.0 kW) |
| Weight (Powerhead) | 13.9 lbs (6.3 kg) |
| Bar Length Options | 20” – 36” |
| Fuel Tank Capacity | 0.785 L |
| Chain Oil Capacity | 0.325 L |
| Chain Pitch | 3/8” |
| STIHL 500i Chain Speed | Up to 26.3 m/s (86 ft/s) |
This chain speed gives the Stihl 500i remarkable cutting efficiency, making it perfect for large logs and hardwood. The lightweight magnesium crankcase and compact design give it one of the best power-to-weight ratios in the industry.
How the STIHL MS 500i Works
The STIHL fuel injected chainsaw uses a microprocessor that continuously adjusts the fuel-air mixture. Sensors detect pressure and temperature inside the crankcase, ensuring the engine always receives the optimal amount of fuel.
This process eliminates the need for manual carburetor tuning, meaning the saw performs perfectly whether you’re working in the cold, at high altitude, or under heavy load. STIHL Chainsaw Chains 16 Inch: Complete Size, Chart, and Price Guide
Stihl Fuel Injected Chainsaw Price Comparison
For professionals comparing different STIHL models:
| Model | Engine Type | Power | Price (Approx.) |
|---|---|---|---|
| STIHL MS 400 C-M | Carbureted | 66.8 cc / 5.4 HP | $1,099 |
| STIHL MS 462 C-M | Carbureted | 72.2 cc / 6.0 HP | $1,299 |
| STIHL MS 500i | Fuel Injected | 79.2 cc / 6.7 HP | $1,499 |
| STIHL MS 661 C-M | Carbureted | 91.1 cc / 7.2 HP | $1,599 |
As shown, the STIHL MS 500i price sits between high-end carbureted and premium pro models, but its fuel-injection performance and efficiency make it an excellent investment.
Does Husqvarna Make a Fuel Injected Chainsaw?
A common question is: Does Husqvarna make a fuel injected chainsaw?
Yes, but STIHL was the first to introduce a fully fuel-injected gasoline chainsaw with the MS 500i. Husqvarna followed with models like the Husqvarna 572 XP AutoTune and Husqvarna 585, which use advanced carburetor automation but are not true electronic fuel injection systems.
In 2024, Husqvarna began developing EFI-based prototypes, but as of now, STIHL remains the leader in this technology.
So, while the Husqvarna fuel injected chainsaw is advancing, STIHL’s MS 500i still stands as the benchmark for fuel-injected performance.
Stihl 500i Problems – Common Issues and Fixes
Even though the STIHL MS 500i is a masterpiece of engineering, it’s not without a few minor concerns reported by users.
Here are some Stihl 500i problems and their possible solutions:
1. Hard Starting When Cold
- Cause: Low battery voltage in the control module or insufficient priming.
- Fix: Press the decompression valve, prime the pump, and pull firmly. If the issue persists, have the dealer check the electronic control unit (ECU).
2. Fuel Pump or Sensor Malfunction
- Cause: Dirt or water contamination in fuel.
- Fix: Always use clean, ethanol-free fuel and STIHL HP Ultra oil. Periodically clean the fuel filter.
3. Overheating During Continuous Cutting
- Cause: Blocked air filter or cooling fins.
- Fix: Clean the air intake system after every use. Avoid continuous wide-open throttle for long durations.
4. Chain Tensioning Problems
- Cause: Worn bar or tensioner gear.
- Fix: Inspect the side tensioner system and lubricate the bar groove regularly.
5. Software Error (Rare)
- Cause: Electronic module issue.
- Fix: Dealers can update or reset the module firmware using STIHL diagnostic tools.
These issues are relatively minor and rare. When maintained correctly, the MS 500i is extremely reliable and durable.
Performance Review: Why the MS 500i Stands Out
In real-world tests, the Stihl fuel injected chainsaw MS 500i consistently outperforms its rivals. Here’s why professionals love it:
- Incredible acceleration: The saw reaches full speed in just 0.25 seconds.
- Perfect throttle response: EFI ensures instant reaction to user input.
- Lightweight design: Feels much lighter than its power rating suggests.
- Reduced fuel waste: EFI system precisely meters every drop of fuel.
Whether cutting through oak, pine, or eucalyptus, the STIHL MS 500i stays powerful and consistent throughout the job.
STIHL 500i Chain Speed and Cutting Efficiency
The STIHL 500i chain speed reaches up to 26.3 meters per second, one of the fastest among pro-grade saws. This means smoother, cleaner, and quicker cuts even in dense hardwood.
Its power-to-weight ratio of 1.9 kg per kilowatt makes it ideal for felling, bucking, and milling large trees with minimal fatigue.
Final Verdict: Is the STIHL MS 500i Worth It?
If you want a cutting-edge, high-performance professional chainsaw, the STIHL fuel injected chainsaw MS 500i is absolutely worth the investment.
It offers unmatched power, responsiveness, and ease of use — and thanks to its fuel injection system, there’s no more carburetor tuning or altitude adjustment.
Compared to the Husqvarna fuel injected chainsaw alternatives, STIHL still holds the technological advantage with its proven EFI system and global service support.
FAQs About STIHL Fuel Injected Chainsaws
1. Does STIHL make a fuel injected chainsaw?
Yes, STIHL was the first manufacturer to release a fuel-injected chainsaw — the STIHL MS 500i — featuring electronic fuel injection for optimal performance and efficiency.
2. What is the price of the STIHL MS 500i?
The STIHL MS 500i price typically ranges between $1,400 and $1,700 USD, depending on bar length and region.
3. Does Husqvarna have a fuel injected chainsaw?
Husqvarna currently uses AutoTune technology, which electronically adjusts carburetion, but it’s not a true fuel injection system like STIHL’s EFI.
4. What are common Stihl 500i problems?
Common issues include hard cold starts, minor fuel pump malfunctions, or overheating from dirty filters — all easily manageable with regular maintenance.
5. How fast is the STIHL 500i chain speed?
The Stihl 500i chain speed reaches approximately 26.3 meters per second (86 ft/s), offering extremely fast cutting performance.
Conclusion
The STIHL fuel injected chainsaw MS 500i is more than just a tool — it’s a breakthrough in chainsaw innovation. With its electronic fuel injection, unmatched power, and precision engineering, it remains the benchmark for professional performance.
Whether you’re comparing prices, checking for Stihl 500i problems, or wondering how it stacks up against Husqvarna fuel injected chainsaws, one thing is clear: the STIHL MS 500i leads the pack as the most advanced and efficient chainsaw ever built.
