STIHL MS 251


Price:
Sale price€755,00

Description

14 Inch/16 Inch Bar Supplied - 45.6CC - 2.2BHP

FEATURES

Reduced-emission engine technology
2-stroke engine with stratified charge.  A fuel-free layer of air is created between the burned charge in the combustion chamber and the fresh charge in the crankcase, reducing the amount of fuel lost during the charge cycle.  This results in more power with a lower weight, up to 20% lower fuel consumption than regulart 2-stroke engines and significantly reduced exhaust emissions.

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.  STIHL has therefore developed an effective anti-vibration system whereby the oscillations from the machine's engine are dampened which significantly reduces vibrations at the handles.

Pre-separation air filtration system
STIHL long-life air-filtration systems with pre-seperation achieve preceptibly longer filter life compared with convential filter systems.  Air drawn in is swirled.  The larger, heavier particles are ejected.  The pre-cleaned air is routed to the air filter via the pre-seperator duct.

Compensator
This controller in the carburator prevents the fuel-air mixture getting richer as the air filter becomes clogged.  The correct quantity of fuel is delivered to the carburator depending on the quantity of air passing through the air filter.  This keeps the fuel/air ratio in the combustion mixture constant and hence also the engine power.  The filter doesn't need to be cleaned until an appreciable drop in power occurs.

Single -lever master control
All important functions such as start, choke, throttle and stop are operated via a single lever.

Side chain tensioner
The tensioning screw can be found on the side of the chainsaw through the sprocket cover.  This removes the need for contact with the sharp saw chain.

Ematic chain lubrication System
The Ematic chain lubrication ensures pinpoint lubrication of the saw chain links and guide bar rails.  When used with STIHL OILOMATIC saw chain, it will provide maximum lubrication, longer wear and less oil consumption than convential methods of chain lubrication.  The Ematic system can reduce bar oil consumption by up to 50%.

Tool free filler caps
Special catches on the fuel and oil tanks for easy opening and locking without the need for tools.

 

Technical data Value
Displacement cm³ 45.6
Power output kW/bhp 2.2/3
Weight kg 1) 4.8
System weight kg 2) 5.67 / 5.88
Power-to-weight ratio kg/kW 2.2
Sound pressure level dB(A) 3) 103
Sound power level dB(A) 3) 114
Vibration values left/right m/s² 4) 3.9/3.9
STIHL Oilomatic saw chain pitch/type .325" RM
Oil pump Not adjustable
Tank volume l 0.39
Chain pitch .325"
Chain tensioning Side chain tension
Sprocket - number of teeth 7.7 Z
Filter Long-term filter system / round cartridge filter
Bumper spike Steel claw
Cylinder Chrome
Oil tank volume cm3 200
Sprocket Profile chain row,Sprocket profile
Anti vibration system AV Steel Spring,AV System, steel spring
Filler cap Tools,WTV tool-free tank cap
EPA Certified fuel consumption l/h 1.075
CO2 g/kWh 862
Handle type Standard grip,Standard handle
Speed at maximum power Um 10.000
EPA Certified fuel consumption glh 0.284

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