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Stratford, WI
715-687-3128
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Stihl MS 661 R MAGNUM 28 in. Lightweight Bar w/ STIHL RAPID Super (33 RS 91)
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Stihl MS 661 R MAGNUM 28 in. Lightweight Bar w/ STIHL RAPID Super (33 RS 91)
View Details
View Details
Specs
Features
General Information
Manufacturer
Stihl
Stihl
Model
MS 661 R MAGNUM 28 in. Lightweight Bar w/ STIHL RAPID Super (33 RS 91)
MS 661 R MAGNUM 28 in. Lightweight Bar w/ STIHL RAPID Super (33 RS 91)
Model Code
11442000389
11442000389
Color
Orange / White
Orange / White
Dimensions
Length
Device with bumper spike - 18.4 in. (467 mm) (without guide bar and saw chain)
Device with bumper spike - 18.4 in. (467 mm) (without guide bar and saw chain)
Width
Groove - 50 in.
Groove - 50 in.
Weight
Device without refueling - 17 lb. (without guide bar and saw chain)
Device without refueling - 17 lb. (without guide bar and saw chain)
Engine
Horsepower
Engine power - 7.30 hp (5.40kW)
Engine power - 7.30 hp (5.40kW)
Displacement
5.6 ci (91.8 cc)
5.6 ci (91.8 cc)
Operational
Chain
STIHL RAPID™ Super 0.050 in. gauge 91 drive links (33 RS 91)
Saw chain pitch - 3/8 in.
STIHL RAPID™ Super 0.050 in. gauge 91 drive links (33 RS 91)
Saw chain pitch - 3/8 in.
Guide Bars
Length - 28 in. lightweight 2238 (The actual cutting length is shorter than the specified bar length)
Length - 28 in. lightweight 2238 (The actual cutting length is shorter than the specified bar length)
Other
Miscellaneous
Power-to-weight ratio - 1.50 kg / kW
Power-to-weight ratio - 1.50 kg / kW
Features
ANTI-VIBRATION SYSTEM: STIHL has a system for minimizing the vibration levels of handheld outdoor power equipment. The STIHL anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience.
BUMPER SPIKES: These spikes prevent pull-in and provide better control, making cutting easier.
DECOMPRESSION VALVE: The decompression valve reduces the compression in the combustion chamber during cranking and helps reduce the effort needed to pull the starter rope.
EMATIC™ LUBRICATION SYSTEM: The Ematic™ guide bar, when used with STIHL OILOMATIC® saw chain, will provide proper lubrication and less oil consumption than conventional methods. The system works because two ramps, strategically placed in the guide bar rail, help contain the flow of oil and direct all lubrication to the sliding faces of the bar and chain links as well as the rivets and driver holes, which in turn can reduce bar oil consumption up to 50%.
HD2 AIR FILTER: The HD2 air filter on this unit is washable, providing extremely long filter life and lowering maintenance costs. The large surface area allows for longer run times between cleanings and high performance even while operating in dusty and dry conditions. Overall, the HD2 air filter provides better protection of the engine compared to standard air filters.
INTELLICARB™ COMPENSATING CARBURETOR: The IntelliCarb™ Compensating Carburetor is designed to automatically adjust the air/fuel ratio when the air filter becomes restricted or partially clogged and maintains the engine’s correct RPM. IntelliCarb™ uses air from the clean side of the air filter to control the diaphragm and flow of fuel. As the air filter becomes dirty and less air is available for the carburetor, the IntelliCarb™ system adjusts the fuel flow to compensate for the decrease in air flow. This is in contrast to typical carburetors that utilize this air from the “dirty” side of the air box.
LIGHTWEIGHT SPROCKET COVER WITH CAPTIVE BAR NUTS: The sprocket cover is lightweight and the captive bar nuts are held securely in place for efficient saw chain maintenance.
MS-WRAP HANDLE (R): Saw can be used in multiple positions for felling or limbing with hands in the proper positions.
MASTER CONTROL LEVER™: The Master Control Lever™ is an easy to use single lever, operating the choke, starting throttle lock, and on-off switch. The operator must pull the throttle trigger before moving the Master Control Lever™ to the choke position.
STIHL ELASTOSTART™: The ElastoStart™ starter handle is a feature of STIHL. It is a starting grip with a built-in shock absorber that helps reduce the effort when pulling on the starter cord. The ElastoStart™ starter grip noticeably reduces the sudden peak forces (compression) normally felt during cranking. The forces which occur at the grip after the first compression stroke are smoothed out.
STIHL QUICKSTOP® AND A SECOND CHAIN BRAKING SYSTEM (Q) EXCLUSIVE TO STIHL: STIHL Quickstop® is designed to reduce the risk of injury in certain kickback situations. An additional manually activated chain brake is designed to engage when the operator‘s right hand completely releases the rear handle, stopping the chain within one second.
SIDE-ACCESS CHAIN TENSIONER: The side-access chain tensioner makes it much more convenient for the user to adjust the saw chain with a bar wrench as opposed to the typical location of the guide bar adjustment screw.
TOOLLESS FUEL AND OIL CAPS WITH RETAINERS: Simply lift the lever and twist the caps to remove or tighten. There’s no need to use a tool to tighten or loosen.
Features
ANTI-VIBRATION SYSTEM: STIHL has a system for minimizing the vibration levels of handheld outdoor power equipment. The STIHL anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience.
BUMPER SPIKES: These spikes prevent pull-in and provide better control, making cutting easier.
DECOMPRESSION VALVE: The decompression valve reduces the compression in the combustion chamber during cranking and helps reduce the effort needed to pull the starter rope.
EMATIC™ LUBRICATION SYSTEM: The Ematic™ guide bar, when used with STIHL OILOMATIC® saw chain, will provide proper lubrication and less oil consumption than conventional methods. The system works because two ramps, strategically placed in the guide bar rail, help contain the flow of oil and direct all lubrication to the sliding faces of the bar and chain links as well as the rivets and driver holes, which in turn can reduce bar oil consumption up to 50%.
HD2 AIR FILTER: The HD2 air filter on this unit is washable, providing extremely long filter life and lowering maintenance costs. The large surface area allows for longer run times between cleanings and high performance even while operating in dusty and dry conditions. Overall, the HD2 air filter provides better protection of the engine compared to standard air filters.
INTELLICARB™ COMPENSATING CARBURETOR: The IntelliCarb™ Compensating Carburetor is designed to automatically adjust the air/fuel ratio when the air filter becomes restricted or partially clogged and maintains the engine’s correct RPM. IntelliCarb™ uses air from the clean side of the air filter to control the diaphragm and flow of fuel. As the air filter becomes dirty and less air is available for the carburetor, the IntelliCarb™ system adjusts the fuel flow to compensate for the decrease in air flow. This is in contrast to typical carburetors that utilize this air from the “dirty” side of the air box.
LIGHTWEIGHT SPROCKET COVER WITH CAPTIVE BAR NUTS: The sprocket cover is lightweight and the captive bar nuts are held securely in place for efficient saw chain maintenance.
MS-WRAP HANDLE (R): Saw can be used in multiple positions for felling or limbing with hands in the proper positions.
MASTER CONTROL LEVER™: The Master Control Lever™ is an easy to use single lever, operating the choke, starting throttle lock, and on-off switch. The operator must pull the throttle trigger before moving the Master Control Lever™ to the choke position.
STIHL ELASTOSTART™: The ElastoStart™ starter handle is a feature of STIHL. It is a starting grip with a built-in shock absorber that helps reduce the effort when pulling on the starter cord. The ElastoStart™ starter grip noticeably reduces the sudden peak forces (compression) normally felt during cranking. The forces which occur at the grip after the first compression stroke are smoothed out.
STIHL QUICKSTOP® AND A SECOND CHAIN BRAKING SYSTEM (Q) EXCLUSIVE TO STIHL: STIHL Quickstop® is designed to reduce the risk of injury in certain kickback situations. An additional manually activated chain brake is designed to engage when the operator‘s right hand completely releases the rear handle, stopping the chain within one second.
SIDE-ACCESS CHAIN TENSIONER: The side-access chain tensioner makes it much more convenient for the user to adjust the saw chain with a bar wrench as opposed to the typical location of the guide bar adjustment screw.
TOOLLESS FUEL AND OIL CAPS WITH RETAINERS: Simply lift the lever and twist the caps to remove or tighten. There’s no need to use a tool to tighten or loosen.