STIHL MS 500i Petrol Chainsaw | 50 cm
The world’s first chainsaw with electronically controlled fuel injection
Product description
With the STIHL MS 500i marks a new era in chainsaw technology from STIHL. As the world’s first chainsaw with electronically controlled fuel injection, it sets new standards in performance and responsiveness. With its powerful 79.2 cm³ engine, low weight and dynamic handling, it is ideal for professional large-timber harvesting and processing in forestry.
Common problems
Professional large-timber harvesting presents typical challenges for conventional carburettor saws:
- Manual carburettor adjustment responds only slowly to changes in altitude and outside temperature
- Carburettor engines often require different start positions for cold and warm starts
- With conventional engines, high power usually comes with correspondingly higher weight
Solution
The MS 500i tackles this with revolutionary STIHL Injection: a control unit uses pressure and temperature sensors to constantly calculate the optimum fuel supply and ideal ignition timing – regardless of altitude or ambient temperature, with no start position.
Key features
- High-performance forestry saw with 50 cm RS cutting attachment
- STIHL Injection – electronically controlled fuel injection
- Best power-to-weight ratio on the market: 1.24 kg/kW
- Chain accelerates from 0 to 100 km/h in 0.25 seconds
- Simplified starting with no start position
- Optimised bumper spike for a firm hold on the tree
- Captive nuts on the sprocket cover
- STIHL anti-vibration system for more comfortable working
Highlights
STIHL Injection
The control unit constantly calculates the correct fuel supply and ideal ignition timing. Sensors measure air pressure and internal and external temperature – for consistently optimum performance in all conditions.
Best power-to-weight ratio on the market
At 1.24 kg/kW, the MS 500i achieves the best power-to-weight ratio on the market – unique in its class despite its high output.
Rapid acceleration
The chain accelerates from 0 km/h to 100 km/h in an incredible 0.25 seconds. This means fast progress in professional large-timber processing.
Simplified starting
Thanks to electronic injection, there is no start position. The easily accessible purger further perfects starting, whether cold or warm.
Optimised sprocket cover
Narrower and flatter than on the previous model, with integrated skid strips and guide edge – for less strenuous limbing and excellent chip removal.
Comfortable working
The STIHL anti-vibration system significantly reduces strain on arms and hands during longer forestry work.
Technical data
| Part number | 1147 200 0000 |
| Displacement | 79.2 cm³ |
| Power | 5.0 kW / 6.80 hp |
| Weight without fuel | 6.3 kg |
| Bar length | 50 cm |
| Chain pitch | 3/8″ |
| Chain type | Rapid Super (RS) |
| Sound pressure level | 106 dB(A) |
| Sound power level | 119 dB(A) |
| Vibration value left/right | 4,2 / 4,0 m/s² |
In the box
- STIHL MS 500i petrol chainsaw
- 50 cm guide bar
- 3/8″ Rapid Super (RS) saw chain
- Combination spanner
- Operating instructions
Frequently asked questions (FAQ)
Who is the STIHL MS 500i suitable for?
The STIHL MS 500i is aimed at forestry professionals looking for an uncompromising high-performance saw for felling, cross-cutting and limbing large timber.
What is STIHL Injection?
STIHL Injection is electronically controlled fuel injection that uses sensor data (air pressure, temperature) to constantly calculate the optimum fuel supply – the MS 500i was the world’s first chainsaw with this technology.
How heavy is the chainsaw in use?
The saw weighs 6.3 kg without fuel, guide bar and saw chain – with 5.0 kW output, a power-to-weight ratio of 1.24 kg/kW.
Which bar length should I choose?
50 cm is suitable for most large-timber work. For particularly thick trunks, 63 cm or 71 cm is the right choice.
What is included?
The chainsaw, matching guide bar, saw chain, combination spanner and operating instructions are included.
Safety information & manufacturer details
Using a chainsaw requires experience and safe handling of the tool.
Before first use, familiarise yourself with the operation and the applicable safety regulations.
Please also note the requirements for suitable protective clothing such as chainsaw trousers, safety boots, gloves and a safety helmet with face and hearing protection.
If you are unsure about operating the machine, we recommend a personal handover and instruction from an authorised STIHL dealer.
- Read the operating instructions and safety information in full before first use.
- Wear suitable personal protective equipment.
- Use chainsaws only for their intended purpose.
Manufacturer information
STIHL Vertriebszentrale AG & Co. KG
Robert-Bosch-Straße 13
64807 Dieburg, Germany
Phone: +49 6071 204-0
Email: kundenservice@stihl.de
Data use information (Regulation (EU) 2023/2854)
| Connected products | All STIHL products connected to ‘STIHL connected’. |
| Access to product data | Product data is available in the ‘STIHL connected’ application. The product must be added first. |
| Deleting the user account | When your organisation is deleted, all linked data is removed, subject to statutory retention obligations. |
| Product data collected | Operational readiness status, service information and runtime data. |
| Data format | CSV file (Excel-compatible). |
| Data volume | Less than 1 MB per connected product. |
| Collection | Continuously in real time. |
| Storage location | Cloud infrastructure of the STIHL Group. |
| Storage period | Until the organisation is deleted, taking statutory retention periods into account. |
