MAINTENANCE

Carburetor

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 carburetor 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.

Functioning

The carburetor governs the

engine speed via the throttle trigger. In the carburetor, air/fuel is mixed. This air/fuel mixture is adjustable. If you want to take advantage of the maximum output of the engine, the setting must be corret.

The setting of the carburetor means that the engine is adjusted to local conditions, for example climate, altitude, gasoline and type of two-stroke oil.

The carburetor has three adjustment possibilities:

L=

Low speed needle

H=

High speed

adjustment screw

T=

Idle speed adjustment

screw

The fuel quantity required in proportion to the airflow the throttle trigger level allows is adjusted by means of the L- and H- needles. Turning the needles clockwise gives a leaner fuel mixture (less fuel), turning them counter-clockwise gives a richer fuel mixture (more fuel). A lean mixture gives higher rpms and a rich one lower rpms.

The idling speed screw T regulates the position of the throttle lever in the idling speed position. Turn the idling speed screw clockwise gives a higher idling speed, turn it counter-clockwise a lower idling speed.

Basic setting

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

NOTE! If the cutting attachment rotates/moves in the idling position, turn the idling speed screw counter-clockwise until the blade stops.

Rec. idling speed: 2 700 rpm.

Recommended max. speed: See “Technical Data” .

!WARNING!

Contact your servicing dealer, if the idle speed setting cannot be adjusted so that the cutting attachment stops. Do not use the machine until it has been properly adjusted or repaired.

Fine adjustment

When the machine has been ”run-in” the carburetor 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 carburetor 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.

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

 

+ 1/4

 

 

 

 

 

 

 

 

 

 

 

the idling position, turn the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

idling speed screw T

 

 

 

 

 

 

 

 

counter-clockwise until the

 

 

 

 

 

 

 

 

cutting attachment stops.

 

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 – English

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Husqvarna 325R, 323R manual Maintenance, Carburetor

325R, 323R specifications

The Husqvarna 325R and 323R are both impressive trimmers designed for users who demand power, efficiency, and durability in their landscaping equipment. These models showcase Husqvarna's commitment to quality and innovation, making them ideal for both professionals and avid gardeners.

The Husqvarna 325R features a robust 25.4cc X-Torq engine. This engine technology is designed to reduce fuel consumption and emissions, thus promoting eco-friendly gardening. The unit boasts a high power-to-weight ratio, meaning that users can handle heavier workloads without feeling fatigued. The 325R is equipped with a professional-grade gear head that enhances durability while ensuring optimal cutting performance. The trimmer shaft is straight and designed for efficient trimming in hard-to-reach areas.

On the other hand, the Husqvarna 323R also packs a powerful 25cc engine, offering a similar emphasis on reduced emissions and low fuel consumption. With its lightweight design, the 323R provides excellent maneuverability, making it suitable for residential applications as well as light professional work. This model is equipped with an efficient cutting head that utilizes a dual line system for quicker and more effective trimming.

Both models incorporate Smart Start technology, which significantly reduces the effort needed for starting the engine. This feature minimizes resistance in the starter cord, allowing users to get to work quickly. The trimmers also come with an adjustable handle, giving operators the flexibility to achieve the most comfortable grip and stance, resulting in improved control and reduced fatigue during extended use.

Additionally, both the 325R and 323R models are fitted with an anti-vibration system, enhancing comfort for longer sessions. This technology absorbs vibrations, providing a smoother operational experience. The trimmers' fuel tank is designed for extended operation, allowing users to work longer without frequent refueling.

In summary, the Husqvarna 325R and 323R stand out as reliable landscaping tools that cater to a variety of trimming tasks. Both models feature powerful engines, user-friendly technologies, and ergonomic designs that enhance comfort and efficiency. Whether you are a professional landscaper or a dedicated gardener, these trimmers are built to deliver superior performance while prioritizing user satisfaction and environmental responsibility.