Description

Stihl MS 661 C-M Chainsaw

Big timber saw for the toughest jobs in forestry. The M-Tronic guarantees optimum engine performance at all times, while its single start position and stop button function mean easy starting. Controlled-delivery high-performance oil pump for conveying high quantities of oil; HD2 filter with very good filter effect, economical 2-MIX engine.

Additional information

Bar length	63cm Roll. S bar, 71cm Roll. ES Light bar, 90cm Roll. ES Light bar

Brand

Stihl

The STIHL name has stood for revolutionary technology and innovative ideas ever since the firm was founded. Throughout our 85-plus year history that has made us the name for state-of-the-art engineering. The STIHL brand is known round the world today for quality and service. In more than 160 countries our products are helping people at work - and that has made us the world's leading chain saw brand.

Features

STIHL 2-MIX-Motor

Der sparsame STIHL 2-MIX-Motor mit 1-in-4-Kanaltechnologie überzeugt mit einem hohem Drehmoment über einen weiten Drehzahlbereich. Dabei spart die Motorsäge bis zu 20% Kraftstoff im Vergleich zu leistungsgleichen STIHL Zweitaktmotoren ohne 2-MIX-Technologie. Der Abgasausstoß wird um bis zu 50 % gesenkt.
HD2 filter

This air filter keeps even the finest dust away from the engine, ensuring a particularly long service life. Thanks to its special material, the filter can easily be cleaned by washing, for example with STIHL Varioclean and warm water.
STIHL M-Tronic (FT)

For a cold start, the STIHL M-Tronic only needs one start position on the combi-lever. After starting, you can immediately power up to full speed. The amount of fuel required is precisely calculated by the system and supplied as needed. Otherwise, start in position I as usual.
STIHL anti-vibration system

Precisely calculated buffer zones minimise the transfer of engine and saw chain vibrations to the front and rear handles. The chainsaw therefore runs noticeably smoother. This allows the user to save their strength and work longer.
STIHL ElastoStart

Due to compression pressure, jerky stresses occur when starting internal combustion engines. The damping element in the ElastoStart special starter grip alternately absorbs and releases force according to the compression pattern. The result is smooth, even starting.
Tool free fuel caps

Special caps to open and close the tank cap quickly, easily and without tools.
Decompression valve

The decompression valve is part of the easy starting system. The valve should be pressed before starting to reduce the compression pressure when starting, as well as reducing the effort needed to pull the starter rope. The decompression valve is semi-automatic; it must be pressed manually before starting, but then closes automatically.
STIHL Ematic System

Compared to conventional bars without Ematic, the STIHL Ematic system reduces the consumption of chain lubricant by up to 50 %, depending on the type of wood and the cutting attachment used. This system comprises a STIHL Ematic or Ematic S guide bar, a STIHL Oilomatic saw chain and a variable-flow or reduced-flow oil pump. As a result, virtually every drop of chain lubricant is delivered to exactly the right spot.
QuickStop Chain Brake

The chain brake on your STIHL chainsaw can be triggered automatically or manually. In both cases, the brake band encloses the clutch drum and prevents the chain starting to move even when the throttle trigger is squeezed. The chain brake is applied manually by pressing the front hand guard on your STIHL chainsaw forwards. It is activated automatically whenever a sufficiently strong kickback is encountered.
Side-mounted chain tensioning

Side-mounted chain tensioning makes it easy to tension the chain safely.
Controlled-delivery oil pump

Different bar lengths, wood types, and sawing techniques require different amounts of oil. The controlled-delivery oil pump allows the user to select just the right amount of oil for the job at hand.

Specifications

Technical data	Value
Displacement cm³	91,1
Performance kW	5,4
Weight kg ¹⁾	7,4
Power-to-weight ratio kg/kW	1,4
STIHL Oilomatic saw chain pitch/type	3/8 "
Filter material	PET-Gewebe

1) Without fuel, without bar and chain

Stihl MS 661 C-M Chainsaw

Description

Stihl MS 661 C-M Chainsaw

Additional information

Brand

Stihl

Features

STIHL 2-MIX-Motor

HD2 filter

STIHL M-Tronic (FT)

STIHL anti-vibration system

STIHL ElastoStart

Tool free fuel caps

Decompression valve

STIHL Ematic System

QuickStop Chain Brake

Side-mounted chain tensioning

Controlled-delivery oil pump

Specifications