Stihl 66.8cc Petrol Chainsaw MS 400

Description
The powerful MS 400 C-M chainsaw is the world's first chainsaw with a magnesium piston. In conjunction with the consistent lightweight construction, this leads to an extremely low power-to-weight ratio of less than 1.45 kg / kW. Experience for the first time, the newly developed 67cm³ motor with an output of 4.0 kW.
A high-performance cutting machine with STIHL M-Tronic, the MS 400 C-M is easy to start and highly specc’d. The rapidly accelerating MS 400 C-M is completely in its element when felling, delimbing and processing medium sized wood.

Technical data
Technical data Value
Bar length cm 50
Bar length in 20
Displacement cm³ 66.8
Displacement cu-in 4.08
Engine power kW 4
Engine power bhp 5.4
Weight kg 1) 5.8
Power-to-weight ratio kg/kW 1.45
System Weight kg 2) 7.28
Sound pressure level dB(A) 3) 107
Sound power level dB(A) 3) 118
Saw chain pitch 3/8 "
1) Without fuel, without bar and chain
2) Unbetankt, mit Führungsschiene und Sägekette
3) K-factor according to DIR 2006/42/EC = 2.5 dB (A)

features
STIHL M-TRONIC
RELIABLE WORK WITH BEST PERFORMANCE. With the STIHL M-Tronic, you have the best performance from your implement right from the start. The fully electronic engine management regulates the ignition point and fuel metering in every work situation, taking into account external conditions such as temperature, altitude and fuel quality.
STIHL ANTI-VIBRATION SYSTEM
Intense vibration at the handles of power tools can lead to longer-term effects of blood vessels in the hands and arms. STIHL have therefore developed an effective anti-vibration system where by the oscillations from the machines engine are dampened which significantly reduces vibrations at the handles.
CAPTIVE NUTS
PROTECTION AGAINST LOSS The nuts are attached to the sprocket cover in a captive manner. This makes it impossible for the nuts to fall off and get lost when the cover is removed.
MANUAL DECOMPRESSION
EFFORTLESS START-UP. The decompression valve makes it easier to start your power 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.
HD2-FILTER
INCREASES SERVICE LIFE. The HD2 filter protects your power tool’s engine against even the finest dust, ensuring a longer service life and reduced wear. The filter made from PET material has up to 70% finer pores than fleece and polyamide filters, and is also oil- and water-repellent. This also makes it easier to clean the filter. When needed, the filter cartridge can be easily replaced without tools.
COMPENSATOR
REDUCED MAINTENANCE. The compensator is a control system in the carburettor, which uses pressure compensation to ensure that engine performance, exhaust gas quality and fuel consumption remain virtually constant over a long period of time, despite increasing contamination of the air filter. You do not need to clean the air filter until there is a noticeable drop in performance. This means that you can work for a long time without maintenance.
LONG-LIFE AIR FILTER SYSTEM FOR CHAINSAWS
EXTENDED FILTER SERVICE LIFE. Pre-separation routing removes coarse, larger particles from the airstream before they can reach the actual filter. The HD2 filter keeps even fine dust away from the engine, ensuring a long engine service life, long cleaning intervals and easy maintenance of your chainsaw. When we refer to a long-life air filter system in chainsaws, this exclusively describes models that have pre-separation routing and an HD2 filter. With this system, you benefit from a significantly longer filter service life compared to conventional air filter systems.
MAGNESIUM PISTON
OPTIMAL POWER-TO-WEIGHT RATIO. The extremely lightweight magnesium piston gives you an excellent power-to-weight ratio, allowing you to work highly efficiently and enjoy a long service life. In addition, a chainsaw with a magnesium piston is designed for a high maximum speed.
CONTROLLED-DELIVERY OIL PUMP
OIL CONSUMPTION BASED ON NEED. The controlled-delivery oil pump reduces your chainsaw’s oil consumption by up to 50%. To use it, simply select the E position. For very long cutting attachments or very dry wood, an additional oil volume can be set by the user.
STIHL FOUR-CHANNEL TECHNOLOGY
FOR LOWER FUEL CONSUMPTION AND HIGH PERFORMANCE. Thanks to STIHL four-channel technology, you can work with your power tool with very low fuel consumption and high performance. The four overflow channels guide the fuel-and-air mixture into the cylinder in a targeted and more compressed manner, which optimally burns the fuel and significantly increases the performance of the engine.
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.
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.