No, the STIHL fs90r is not discontinued. It is actually one of the most popular models within their range of grass trimmers and brushcutters. The fs90r is equipped with a 4-MIX engine that delivers great power, making it perfect for removing tough grass and cutting back shrubs and saplings.
This model is part of the STIHL KombiSystem series of products, which share interchangeable motors and attachments. The FS 90 R is capable of performing on tough terrain and can handle even the heaviest of assignments.
It also comes with features such as vibration dampening and easy starting, making it highly user friendly. The only downside is its age, but with proper maintenance and upgrades, it should last for many years to come.
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What is the recall on STIHL fs90r?
The recall on the STIHL FS90r is for the AV or ErgoStart systems. STIHL has recalled approximately 200,000 FS90r’s that were sold at various STIHL dealers and other retailers from May of 2009 through November of 2015 due to a potential kickback hazard.
The affected trimmers are model number FS90R, serial numbers R309427601 through R409362771.
If you believe you own one of these affected trimmers, please visit STIHL’s website for more information and words on how to have it repaired or replaced. STIHL will repair or replace the unit free of charge.
STIHL stresses that apart from this recall, the FS90r is a safe product and should continue to be used in accordance with the owner’s manual.
What size engine is a Stihl FS 90r?
The Stihl FS 90r has a 27. 2cc engine. It is a professional trimmer engine designed for high performance and long service life. It features stratified scavenging technology, which reduces fuel consumption by up to 20% and exhaust emissions by up to 50%.
The engine also has a temperature control system to prevent overheating and optimize performance during extended periods of operation. Additionally, it incorporates a two-ring cylinder for improved air cooling and a multi-function handle for ergonomic operation.
The Stihl FS 90r is one of the most powerful and dependable trimmer engines available.
Is a STIHL fs90r 4-stroke or 2-stroke?
The STIHL FS90R is a 4-stroke engine. This is demonstrated by its impressive performance, delivering a great amount of power while reducing pollution. The 4-stroke engine works by using four distinct strokes to complete the internal combustion process.
They include the intake stroke, which brings in a fuel/air mixture; the compression stroke, wherein the fuel is compressed for ignition; the combustion stroke, which ignites the fuel and air mixture; and the exhaust stroke, which pushes the burned gases out of the engine.
The STIHL FS90R also has fewer emissions and is more fuel efficient than traditional 2-stroke engines, producing an impressive 10. 2 horsepower.
What fuel does Stihl FS 90r use?
The Stihl FS 90r is a lightweight professional-grade trimmer that runs on a 50:1 blend of unleaded gasoline and two-stroke engine oil. The fuel should be blended refresh each tank to ensure optimal engine performance.
The Stihl FS 90r has a 33. 8 cm³ displacement, with an output of 0. 96 kW @ 9500 rpm. Stihl recommends the use of Stihl HP Ultra 2-Cycle oil or equivalent, although you can use any 2-cycle engine oil meeting ISO-L-EGD or JAS0 FC grade standards.
It is important to make sure that the oil meets these standards and is specifically labeled as suitable for two-stroke engines. It is always best to use the oil recommended by the equipment manufacturer in order to ensure the engine runs correctly and reduces the risk of internal damage.
What does the R stand for on STIHL?
The “R” on STIHL stands for “Racing”. This is a reference to the company’s motorsport activities and their commitment to performance and innovation. As an ode to their racing history, STIHL has created several high-performance commercial products that incorporate technology advanced, lightweight materials and design elements inspired by racing.
The “R” signifies this connection to motorsport and STIHL’s dedication to providing its customers with performance, speed and power. STIHL racing models are typically higher-end products intended for commercial use, such as professional landscaping crews or large property owners, who require the best in modern power equipment.
What gas does STIHL recommend?
STIHL recommends the use of a high-quality, 2-cycle engine oil specifically designed for air-cooled, 2-cycle engines. The Society of Automotive Engineers (SAE) classifies 2-cycle engine oil by its viscosity.
STIHL recommends an SAE 30 engine oil. It is best to use unleaded gasoline with an octane rating no lower than 89 (Research Octane Number 91). Also, the gasoline should be fresh and preferably the same type that is used in your vehicle for convenience.
It is best to use a fuel-oil mix that is labeled “regular”, “standard” or “all-season”. The best ratio is either 50:1 or 40:1, depending on the STIHL engine series. STIHL also recommends adding their specialized premix fuel at a 50:1 ratio.
This STIHL premix has been formulated for best performance and is especially suited for STIHL equipment.
Can STIHL use 87 octane?
Yes, STIHL does recommend using 87 octane fuel with their engines. For most STIHL two-stroke engines, 87 octane is the optimum fuel choice for maximum performance and fuel economy. In areas where the altitude is above 2,000 feet (610 m), 89 octane fuel is recommended.
When using 89 octane fuel in combination with STIHL’s “Premium” 50:1- Ratio Oil, the engine will achieve its maximum performance. STIHL recommends using only pure gasoline (no ethanol). Be sure to mix the fuel according to the proper ratio with STIHL 2-Stroke Engine Oil or other compatible brands.
Always use only unleaded gasoline in a STIHL power tool. Using fuel with higher octane ratings can cause serious engine damage.
Is the Stihl FS 91 R 4-stroke?
Yes, the Stihl FS 91 R is a 4-stroke trimmer. It features an engine displacement of 27. 2 cc, a tank capacity of 11. 28 fl. oz. , and a Speed Feed 400 easy-loading trimmer head for easy line loading.
It has a low-emission 4-cycle engine that is powerful and reliable. The 4-stroke engine design reduces harmful exhaust emissions by up to 70% compared to 2-stroke engines, while also consuming up to 20% less fuel and providing a lower level of noise and vibration.
The FS 91 R is equipped with an anti-vibration system helping to reduce operator fatigue and incorporates ErgoStart technology which makes starting the trimmer almost effortless. The trimmer is well-balanced, lightweight and provides great power-to-weight ratio while making it easy to handle and operate.
How many cc is a Stihl fs90r?
The Stihl FS90R is a professional-grade trimmer/brushcutter that features a full-crank engine. It comes as a standard trimmer/brushcutter with a 25. 4 cc (1. 6 cu. in. ) engine, and is also available in a version equipped with a larger 31.
8 cc (1. 9 cu. in. ) engine. The FS90R is a powerful trimmer, ideal for professional landscaping and grounds maintenance. It features an anti-vibration system for improved operator comfort, a ECHO Flexi-Blade for easy trimming, a high-torque gearbox for tough tasks, and a solid drive shaft for increased durability.
The larger 31. 8 cc version of the FS90R has even more power and torque to tackle the most challenging tasks.
What is the most powerful STIHL brush cutter?
The STIHL FS 560 C-EM is the most powerful brush cutter offered by STIHL. This professional-grade brushcutter utilizes a powerful 2. 6kW (3. 5 bhp) engine to power through dense stands of brush and hardwood, while also providing EASY2START technology to make pulling the cord easier as well as an ergonomic support handle to reduce fatigue throughout extended use.
Additionally, this brushcutter features a dual-line tap trimmer head, a grass blade, and a larger saw blade which enables it to handle even the most difficult landscaping tasks. The lightweight construction ensures that the FS 560 C-EM can tackle even the most grueling tasks without straining your body, and it is big enough to provide the necessary power, but still remain maneuverable in tight spaces.
The powerful STIHL FS 560 C-EM is the premier brush cutter for tackling difficult landscaping tasks.
Are STIHL trimmers 2 cycle or 4 cycle?
STIHL trimmers are typically 2-cycle trimmers, meaning that they use a mixture of fuel and oil to power a 2-stroke motor. These types of engines have a crankshaft that moves up and down, which is then connected to the piston, which moves in a circular motion.
This creates a power cycle as the fuel and air mix and is then ignited by a spark, causing the piston to move up, which causes the air and fuel mix to be pushed down and then out of the cylinder. 2-cycle trimmers are usually better for light duty or trimming, as the design of the 2-stroke motor is more lightweight than most 4-cycle trimmers, making them easier to maneuver.
4-cycle trimmers, on the other hand, run on gasoline without the need for added oil. In a 4-cycle engine, the fuel and air mix is compressed within the cylinder before being ignited. This gives the engine a smoother power band, as well as increased fuel efficiency, however 4-cycle engines usually carry more weight due to their larger size.
Which STIHL trimmer is 4-stroke?
The STIHL FS 91 R trimmer is a 4-stroke trimmer. It offers excellent power and performance, with low emissions and fuel economy. The STIHL FS 91 R is built with a low-emission, 4-stroke engine that provides excellent power and fuel efficiency.
It also features STIHL’s Easy2Start system, which reduces starting effort up to 30%, and an ergonomically designed bike handle to promote balance and reduce fatigue. With its large treaded tires, the FS 91 R trimmer offers superior traction and manoeuvrability, even in wet grass.
Additionally, it has a TapAction auto-cut head for efficient line feeding and quick trimming. This trimmer is reliable, lightweight and easy to use, making it an excellent choice for suburban homeowners and rural landowners.
What is the fuel mix for Stihl FS 91 R?
The Stihl FS 91 R uses a fuel mix ratio of 50 parts high-grade non-ethanol unleaded gasoline to one part two-stroke engine oil. The engine oil should be Stihl HP Ultra two-stroke engine oil, which is designed to minimize smoke emissions and maximize fuel efficiency.
When mixing the fuel and oil, it is important to shake the fuel container vigorously to ensure that the oil and gas are properly distributed. It is recommended that the fuel mix should be changed every 50 operating hours or once per tank of fuel.
The Stihl FS 91 R is not designed to use Ethanol blended fuels, which can cause poor performance and more frequent maintenance intervals.
What kind of fuel does a STIHL km91r take?
The STIHL KM91R model of trimmer/brushcutter takes a two-stroke engine fuel mixture. This fuel mixture is a combination of high-grade, unleaded gasoline and two-stroke engine oil in a ratio of either 50:1 or 40:1.
To clarify, for every gallon of gasoline, you should mix 2. 6 ounces of oil for a 50:1 ratio, or 3. 2 ounces of oil for a 40:1 ratio. It is advised to always use high-grade unleaded gasoline and oil specifically made for two-stroke engines.
Additionally, you should use fresh fuel for the fuel/oil mixture, as using old gas can clog up the system and damage the engine. Furthermore, it is advised to never use fuel that has been exposed to extreme temperatures or stored for long periods of time.
