Stihl – MS 661 C-M – Petrol Chainsaw

MS661CM (Stihl 2-MIX) 7.3hp petrol chainsaw with 28/36″ bar.

The competition chainsaw used in the Stihl Timbersports series. Big timber saw for the toughest jobs in forestry.

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Product Details

Very powerful high-performance saw with advanced 2-MIX technology and STIHL M-Tronic (M). This electronic engine management system regulates the ignition timing and the fuel supply and automatically registers the external temperature for optimal engine performance, great acceleration and sustained maximum torque. Extremely robust and durable with low vibration levels. Designed for professional use within forestry and big timber harvesting.
Displacement cm³ 91.1
Power output kW/bhp 5.4/7.3
Power-to-weight ratio kg/kW 1.4
Weight kg 1) 7.4
Sound pressure level dB(A) 2) 105
Sound power level dB(A) 2) 118
Vibration values left/right m/s² 3) 6.9/5.6
STIHL Oilomatic saw chain pitch/type 3/8" RS
STIHL Oilomatic saw chain pitch/type 3/8"
The engine requires a mix of petrol and engine oil.  Simply mix a Stihl 50:1 two-stroke engine oil with unleaded (95 octane) petrol. The simplest method is using a standard 5 litre fuel canister and to add 0.1 litres (100 ml) of Stihl HP 2 stroke oil, close and thoroughly shake the canister and the mix is ready to use. For this machine we recommend either Stihl HP or Stihl HP Ultra engine oil.

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