Jonsered 2125 manual Muffler, Fine adjustment of the idle speed T, High speed jet H

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MAINTENANCE

Fine adjustment of the idle speed T

Adjust the idle speed using the idle adjustment screw T, if it is necessary to readjust. First turn the idle adjustment screw T clockwise until the cutting attachment starts to rotate. Then turn the screw anticlockwise until the cutting attachment stops. The idle speed is correctly adjusted when the engine will run smoothly in every position.The idle speed should also be well below the speed at which the cutting attachment starts to rotate.

CAUTION! If the idle speed cannot be adjusted so that the cutting attachment stops, contact your dealer/service workshop. Do not use the machine until it has been correctly adjusted or repaired.

High speed jet H

Note that the engine should not be under load when you adjust the high speed jet H. You should therefore remove the cutting attachment, nut, support flange and drive disc before adjusting the high speed jet H. The high speed jet H affects the engine power, speed, temperature and fuel consumption. If the high speed jet H is set too lean (screwed in too far) the engine speed will be too high and cause engine damage. Do not let the engine run at full speed for more than 10 seconds.

Apply full throttle and turn the high speed jet H very slowly clockwise until the engine slows down. Then turn the high speed jet H very slowly anticlockwise until the engine starts to run unevenly. Now turn the high speed jet H slowly clockwise a little way until the engine runs smoothly.

The high speed jet H is adjusted correctly when the machine burbles a little. If the machine races then the setting is too lean. If the engine produces a lot of smoke and burbles a lot then the setting is too rich.

H

CAUTION! For optimum adjustment of the carburettor, contact a qualified dealer/service workshop that has a revolution counter at their disposal.

Correctly adjusted carburetor

When the carburetor is correctly adjusted the machine will accelerate without hesitation and burble a little at maximum speed. It is also important that the cutting attachment does not rotate at idle. If the low speed jet L is set too lean it may cause starting difficulties and poor acceleration.

If the high speed jet H is set too lean it will result in less power, less performance, poor acceleration and/or damage to the engine. If both the L and H jets are set too rich it will results in acceleration problems or too low a working speed.

Muffler

CAUTION! Some mufflers are fitted with a catalytic converter. See chapter on Technical data to see whether your machine is fitted with a catalytic converter.

The muffler is designed to reduce the noise level and to direct the exhaust gases away from the operator. The exhaust gases are hot and can contain sparks, which may cause fire if directed against dry and combustible material.

Some mufflers are equipped with a special spark arrestor mesh. If your machine has this type of muffler, you should clean the mesh at least once a week. This is best done with a wire brush.

On mufflers without a catalytic converter the mesh should be cleaned weekly, or replaced if necessary. On mufflers fitted with a catalytic converter the mesh should be checked, and if necessary cleaned, monthly. If the mesh is damaged it should be replaced.

If the mesh is frequently blocked, this can be a sign that the performance of the catalytic converter is impaired. Contact your dealer to inspect the muffler. A blocked mesh will cause the machine to overheat and result in damage to the cylinder and piston.

CAUTION! Never use a machine with a defective muffler.

WARNING! Mufflers fitted with catalytic

!converters get very hot during use and remain so for some time after stopping. This also applies at idle speed. Contact can result in burns to the skin. Remember the risk of fire!

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Contents Operator’s manual EPA Symbols KEY to SymbolsContents Safety Instructions Machine′s safety equipmentPersonal protective equipment Muffler Vibration damping systemCutting equipment Locking nutNever use a machine that has a faulty muffler Safety Instructions Cutting equipment Sharpening grass cutters and grass bladesTrimmer head Fuel safety General safety precautionsStarting Transport and storageGrass clearing using a grass blade Basic safety rulesGeneral working instructions Basic working techniquesTrimming Grass trimming using a trimmer head and plastic bladesWhat is what on the trimmer? What is WHAT?Fitting the loop handle AssemblyFitting the J-handle Fitting blades and trimmer headsFitting the trimmer guard and Auto 32 trimmer head Fitting other guards and cutting attachments Fitting the trimmer guard and trimmer headGuard Fuel Fuel HandlingGasoline Two-stroke oilFueling Starting and Stopping Check before startingStarting and stopping Stopping Carburetor MaintenanceCorrectly adjusted carburetor Fine adjustment of the idle speed TMuffler High speed jet HCooling system Cleaning the air filterBevel gear Air filterDaily maintenance Maintenance scheduleWeekly maintenance Monthly maintenanceTechnical data Technical DataApproved accessories Type Cutting attachment guard, Art. no Your Warranty Rights and Obligations Federal Emission Control Warranty StatementTrimmy H S35 25 m ´z*x3¶5U¨ Auto 1088931-95 ´z*x3¶5U¨ ´z*x3¶5U¨

2125 specifications

The Jonsered 2125 is a powerful and versatile chainsaw that has earned a reputation among forestry professionals and enthusiasts alike. Engineered for performance and durability, this model incorporates several features and technologies that set it apart from its competitors.

At its heart, the Jonsered 2125 boasts a robust 50cc engine, designed to deliver impressive power while maintaining efficiency. The high power-to-weight ratio ensures that users can tackle demanding tasks without the strain that typically accompanies heavier models. This chainsaw strikes an excellent balance between performance and ease of use, making it suitable for both novice and experienced users.

One of the standout features of the Jonsered 2125 is its advanced ignition system, which includes an electronically controlled ignition module. This innovation enhances starting reliability, even in challenging conditions. The saw's carburetor is finely tuned for optimal fuel delivery, contributing to consistent operation and reduced emissions. Users will appreciate the environmentally friendly design, which meets stringent emission standards without compromising on performance.

The chainsaw's ergonomics play a crucial role in the overall user experience. With a well-designed handle and lightweight construction, the Jonsered 2125 reduces operator fatigue during extended use. The anti-vibration technology integrated into the design minimizes vibrations felt in the handles, allowing for safer and more comfortable operation.

Safety features are paramount in the design of the Jonsered 2125. The chainsaw is equipped with a chain brake that activates quickly in emergencies, preventing kickback incidents. Additionally, the throttle lock ensures that the chainsaw does not accidentally start, providing peace of mind to users during transport and setup.

Maintenance is made straightforward with the Jonsered 2125. The side-mounted chain tensioner allows for quick adjustments without the need for special tools. This feature is particularly valuable for users who require a reliable chainsaw ready for action at a moment’s notice.

In conclusion, the Jonsered 2125 is a highly capable chainsaw that combines power, efficiency, and user-friendly features. With its advanced technologies, ergonomic design, and strong safety characteristics, it remains a preferred choice for those who demand quality and performance in their outdoor tools. Whether conducting professional forestry work or tackling home improvement projects, the Jonsered 2125 delivers reliable results.
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