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STIHL MS661 C-M Chainsaw Engine - Complete with 36" Bar & Chain - STIMS661

€1,395.00 €1,250.00 Ex. VAT

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Code STIMS661


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Product Description & Features

Stihl MS 661 C-M Chainsaw Engine - Complete with 36" Bar & Chain - STIMS661

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. Supplied with rollomatic E guide bar, not rollomatic ES light as pictured.

  • Decompression valve
    The decompression valve is part of the easy starting system.
  • Combi lever
    The exact amount of fuel is supplied on demand.
  • STIHL M-Tronic (M)
    This fully electronic engine management system adjusts ignition timing and fuel metering in all operating modes. 
  • HD2 filter
    The HD2 filter is made from polyethylene filter material.
  • STIHL 2-MIX-Engine
    The economical STIHL 2-MIX engine with 1-in-4channel technology features a high torque over a wide speed range.
  • Anti-vibration system
    Intense vibration at the handles of power tools can lead to long-term effects on blood vessels in the hands and arms.
  • Compensator
    This controller in the carburettor prevents the fuel-air mixture getting richer as the air filter becomes clogged.
  • Captive nuts
    When changing the cutting attachment, you will not risk losing the nuts on the sprocket.
  • Variable-displacement oil pump
    Allows a precise, demand-based delivery of oil.
  • Side chain tensioner
    The tensioning screw can be found on the side of the chain saw through the sprocket cover.
  • Ematic chain lubrication system
    The Ematic chain lubrication system ensures pinpoint lubrication of the saw chain links and guide bar rails.
  • STIHL ElastoStart
    STIHL ElastoStart reduces the shock caused by the compression of the engine during starting.
  • Tool free filler caps
    Special catches on the fuel and oil tanks for easy opening and locking without the need for tools.
Technical Specification
  • Displacement cm³:  91.1
  • Power output kW/bhp: 5.4/7.3
  • Weight kg 1): 7.4-7.5
  • Power-to-weight ratio kg/kW: 1.4
  • Weight kg 2): 9.22 / 10.28 / 10.38
  • Bar length cm: 71-90
  • Bar length ": 28-36
  • CO2 g/kWh: 711
  • STIHL Oilomatic saw chain pitch/type: 3/8" RS
  • Sound pressure level dB(A) 3): 105
  • Sound power level dB(A) 3): 118
  • Vibration values left/right m/s² 4): 6.9/5.6
  • STIHL Oilomatic saw chain pitch/type: 3/8 ",3/8"
  • Tank volume l: 0.85
  • Speed at maximum power rpm: 9.500
  • Bumper spike: Stahlkralle,Steel claw
  • Sprocket - number of teeth: 7.7 Z
  • Cylinder: Chrom,Chrome
  • Filter material: PET-fabric,PET-Gewebe
  • Oil pump: Adjustable,einstellbar
  • Filter: HD2 filter,Patronenfilter HD2
  • Sprocket: Chain sprocket,Ring sprocket,Ringkettenrad
    Chain tensioning: Lateral chain tensioning,seitliche Kettenspannung,Side chain tension
  • Anti vibration system: Standard AV-System
  • Handle type: Standard grip,Standardgriff
  • Exhaust: Standard muffler,Standardschalldämpfer
  • Filler cap: Tool free filler cap,WTV werkzeugloser Tankverschluss
  • Chain pitch: 3/8"
  • Carburettor: STIHL M-Tronic,STIHL M-Tronic
  • EPA Certified fuel consumption glh: 0.751
  • EPA Certified fuel consumption l/h: 2.841
  • Oil tank volume cm3: 400
What's In the Box
  • Stihl MS 661 C-M Chainsaw Engine - Complete with 36" Bar & Chain - STIMS661

Supplied in Shipping Carton

Delivery Info

At P.T.R.S. Ltd. we are pleased to offer both Delivery and Click & Collect options. Delivery is FREE on orders over €75 and Click & Collect is always free.

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Returns Policy

We at P.T.R.S. Ltd, pride ourselves with the high-quality of the products we supply to our customers. We do of course understand that not every product is made equal and that sometimes there are cases where the product itself is not fit for purpose or simply does not suit the reason it was bought for.

For this reason we are happy to accept items returned to us within 14 days of delivery. We offer you an exchange or full refund to your credit or debit card once we receive the items & process them in our warehouse.

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