Husqvarna 325RJX-Series manual Maintenance, Carburettor

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MAINTENANCE

Carburettor

Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions.

After your unit has been run 8-10 tanks of fuel the engine has broken in. To ensure that your unit is at peak performance and producing the least amount of harmful emissions after break in, have your authorized servicing dealer, who has a revolution counter at his disposal, to adjust your carburettor for optimum operating conditions.

!WARNING!

The complete clutch cover with shaft must be fitted before the machine is started, otherwise the clutch can become loose and cause personal injury.

Operation

• The carburettor governs the engine‘s speed via the throttle. Air/fuel is mixed in the carburettor. The air/fuel mixture is adjustable. To take advantage of the engine‘s optimal output the adjustment must be correct.

• The setting of the carburettor means that the engine is adapted to local conditions, for example, the climate, altitude, petrol and the type of 2-stroke oil.

•The carburettor is equipped with three adjustment possibilities:

L = Low speed needle

H = High speed needle

Basic setting

•The carburettor is set to its basic setting when test run at the factory. The basic setting is richer than the optimal setting and should be kept during the machine‘s first working hours. Thereafter the carburettor should be finely adjusted. Fine adjustment should be carried out by a skilled technician.

NOTE! If the cutting attachment rotates/moves while the engine is idling the T-screw should be turned anti-clockwise until the cutting attachment stops.

Rec. idling speed: 2 700 rpm.

Recommended max. speed: See “Technical Data” .

!WARNING!

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

Fine adjustment

•When the machine has been ”run-in” the carburettor should be finely adjusted. The fine adjustment should be carried out by qualified person. First adjust the L-jet, then the idling screw T and then the H-jet.

Conditions

•Before any adjustments are made the airfilter should be clean and the airfilter cover fitted. Adjusting the carburettor while a dirty airfilter is in use will result in a leaner mixture when the filter is finally cleaned. This can give rise to serious engine damage.

•Carefully turn the L and H needle to the mid point between fully turned in and fully turned out.

•Do not attempt to adjust the needles beyond the stops as damage can occur.

•Now start the machine according to the starting instructions and run it warm for 10 minutes.

NOTE! If the cutting attachment rotates/moves the T screw should be turned anti-clockwise until the cutting attachment stops.

T = Idle speed adjuster screw

•The fuel quantity in relation to the air flow permitted by the throttle opening is adjusted using the L and H-needles. Turning the needles clockwise gives a leaner fuel mixture (less fuel) and turning them anti-clockwise gives a richer fuel mixture (more fuel). A leaner mixture gives high revs while a richer mixture give less revs.

•The T-screw regulates the position of the throttle while the engine is idling. Turning the screw clockwise gives a higher idling speed while turning it anti-clockwise gives a lower idling speed.

Low speed needle L

Try to find the highest idling speed, turning the low speed needle L clockwise respectively counter- clockwise. When the highest speed has been found, turn the low speed needle L 1/4 turn counter-clockwise. NOTE! If the cutting attachment rotates/moves in the idling position, turn the idling speed screw T counter-clockwise until the cutting attachment stops.

+ 1/4

L

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Contents 325RJ 101 91Symbol Explanation SymbolsMax 10000 rpm Contents Stop switch Safety InstructionsMachine‘s safety equipment Personal protective equipmentCutting attachment guard Vibration damping systemMuffler Cutting equipmentLocking nut Maintenance Safety Instructions Cutting equipment Filing the grass bladeTrimmer head Start General safety instructionsFuel safety Transport and storageGeneral working instructions Basic safety precautionsBrush cutting using a grass blade Basic working techniquesTrimming Grass trimming using the trimmer head and plastic knifesClearing SweepingWhat is WHAT? What is what on the trimmer?Assembling the J-handle AssemblyAssembly of the blade and trimmer head Assembling the spray guard and trimmer head SuperautoDismantling takes place in the reverse order Fuel Handling Fuel mixtureFuelling Start and Stop Control before startingStart and stop Maintenance CarburettorFinal setting of the idling speed T High speed needle H Correctly adjusted carburettorMuffler Cooling system Spark plugAir filter Maintenance scheduleDaily maintenance Angle gearWeekly maintenance Monthly maintenanceTechnical Data Technical data 325RJ-XApproved accessories Type Cutting attachment guard Art NoSuper Auto Super Auto II Tri Cut Trimmy H Click Trimmy Hit Junior Trimmy Hit Pro 2,4 mm 080-.095 12 cm ~ 3,5 m Trimmy SII 502 26 ´*31@¶6E¨ English 2001W17

325RJX-Series specifications

The Husqvarna 325RJX-Series is designed for professionals and homeowners looking for a reliable and efficient tool for cutting grass, trimming hedges, and maintaining lawns. This series stands out due to its combination of power, maneuverability, and innovative features that cater to a variety of landscaping needs.

One of the primary characteristics of the 325RJX-Series is its robust engine, which delivers impressive performance while maintaining fuel efficiency. The series is equipped with a powerful 25cc two-stroke engine that ensures a reliable power supply, enabling users to tackle tough tasks without compromising on speed or effectiveness. The engine also utilizes Husqvarna’s advanced air injection technology, which helps to minimize air filtration clogging and extend the life of the engine.

The lightweight design of the 325RJX-Series further enhances its usability, making it easier for users to handle and transport. The ergonomic handle provides a comfortable grip, which is particularly beneficial during long periods of operation. Additionally, the balanced design reduces user fatigue, allowing for extended use without discomfort.

Another notable feature is the innovative Auto Return Stop Switch, which simplifies the starting process. After powering down the machine, the switch automatically resets to the "on" position, ensuring quick and effortless restarts when it's time to get back to work. This feature is especially useful for professional landscapers who need to maximize efficiency throughout the day.

The 325RJX-Series also boasts detachable and interchangeable cutting heads, allowing users to switch between a trimmer head and a blade with ease. This versatility makes it suitable for a variety of tasks, from trimming grass around flower beds to cutting through thick brush.

Additionally, this series incorporates vibration dampening technology, which minimizes fatigue by reducing the amount of vibration experienced by the user. This focus on user comfort and operational efficiency has made the 325RJX-Series popular among both professionals and home users.

In summary, the Husqvarna 325RJX-Series is a powerful, lightweight, and versatile trimming solution. With its advanced engine technology, ergonomic design, and innovative features, it is a top choice for anyone seeking to maintain their outdoor spaces effectively and efficiently. Whether for professional use or home landscaping, the 325RJX-Series delivers reliability and performance that users can depend on.
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