MS 500i Petrol Chainsaw

STIHL INJECTION:
HIGH PERFORMANCE IN COMPACT DESIGN. The electronic fuel injection control unit continuously calculates the correct fuel supply and the ideal ignition time, and injection is performed directly into the crankcase via the injection valve. Additionally, sensors measure air pressure and internal and external temperature, and pass information on to the control unit. This can use the identified values to determine the optimum fuel quantity and ignition timing. This means that your tool offers more power from a similar weight and installation space compared to engines without injection.

MANUAL DECOMPRESSION:
EFFORTLESS START-UP. The decompression valve makes it easier to start your tool. When starting, you can allow some of the compressed mixture to escape from the cylinder by opening the valve. This protects the start-up system and reduces the amount of force required on the starter cord.

SENSOR-BASED FUEL MEASUREMENT:
FOR OPTIMISED RUNNING CHARACTERISTICS. During work, your chainsaw uses a pressure and temperature sensor on the engine to measure the fuel. The control unit processes the values measured by the sensor so that the system adapts to the operating conditions. The optimised measurement of the fuel also achieves the best possible running behaviour.

SIMPLIFIED START:
NO NEED FOR A START POSITION. Thanks to electronic fuel injection, your chainsaw does not need a start position. In addition, the manual fuel pump is easily accessible, making the start-up process even easier.

STIHL 2-MIX ENGINE:
HIGHLY POWER-EFFICIENT. With the STIHL 2-MIX engine, you can reduce exhaust emissions and fuel consumption, and therefore operating costs. This 2-stroke engine is low-maintenance and uses fuel efficiently even at high power levels. Use a mixture of petrol and engine oil as fuel. The STIHL 2-MIX engine complies with the strict EU Stage V emissions directive.

CAPTIVE NUTS:
When changing the cutting attachment, you will not risk losing the nuts on the sprocket.

PLUNGE GUIDE:
Marking has been added to the fan housing to assist with plunge cuts. This ensures better directional control and safe use of the machine during plunge cutting.

OPTIMISED BUMPER SPIKES:
FOR A FIRM GRIP ON THE TREE. The rounded arrangement of the bumper spike teeth matches the radial contours of trees. This means that your chainsaw will bite even better into the wood when cutting to length and felling.

SIDE-MOUNTED CHAIN TENSIONING:
FOR SIMPLE AND SECURE RE-TENSIONING. Side-mounted chain tensioning allows for protected, easy and quick chain tensioning and replacement. The tensioning screw is inserted laterally through the sprocket cover.

TOOL-FREE FUEL CAP FOR OIL AND FUEL TANKS:
QUICK AND EASY TO USE. With tool-free fuel cap, you can open and close oil and fuel tanks in just a few simple steps, thanks to a bayonet closure.

OPTIMISED SPROCKET COVER:
SAVES YOUR ENERGY. The optimised sprocket cover is narrower and flatter than the previous model. This improvement enables effortless delimbing and excellent chip removal. It has integrated slide rails and a guide edge, making it easier to guide the power tool along the trunk.

STIHL EMATIC SYSTEM:
REDUCES OIL CONSUMPTION. The STIHL Ematic system comprises a STIHL Ematic or Ematic S guide bar, a STIHL Oilomatic saw chain and a controlled-delivery oil pump. It ensures that the chain oil gets to where it is needed for lubrication. This allows you to reduce oil consumption by up to 50%. If you often work in dusty conditions or if you use long guide bars, you can quickly and easily increase the oil quantity at any time with the new oil pump system.