Maintenance, Carburetor, Basic factory settings

MAINTENANCE

Carburetor

The carburetor has been carefully preset at the fac- tory. However, additional adjustment may be required due to climate, altitude, gasoline and type of two- stroke engine oil used. The instructions below describe how carburetor adjustment should be carried out.

Basic (factory) settings

The carburetor is preset to the basic settings when the blower is tested at the factory. These basic settings are the following:

The H screw has been turned counterclockwise to its end position against the stop.

The L screw has been turned counterclockwise to its end position against the stop.

The carburetor governs the engine speed via the throttle. Air and fuel are mixed in the carburetor. The air/fuel mixture is adjustable. To utilize the blower’s maximum output, the settings must be correct.

The carburetor has three means of adjustment:

H = High speed jet

L = Low speed jet

T = Adjustment screw for idling

H L T

Function

The fuel quantity required in relation to the air flow, provided by the opening in the throttle, is adjusted by the L and H jets. If they are screwed clockwise, the air/fuel mixture becomes leaner (less fuel) and if they are screwed counterclockwise, the mixture becomes richer (more fuel). A leaner mixture gives rise to a higher engine speed and a richer mixture gives rise to a lower engine speed.

The T screw regulates the idling speed. Turning the T screw clockwise will increase the idling speed; turning it counterclockwise will lower the idling speed.

The recommended idling speed is 3000 rpm.

Adjustment

NOTE!

Do not remove the stops in the H and L jets. If these stops are removed, the blower will no longer satisfy the environmental requirements established by the California Air Resources Board.

Low speed jet, L

1.Check that the blower tube (15) and the nozzle (14) are mounted on the blower.

2.Turn the H and L adjustment screws fully counter- clockwise so that they rest against the stop.

3.Start the blower engine, see page 13, and alternate letting it run at idling speed and at half throttle for 1-2 minutes to warm up. If the engine will not run at idling speed, turn the T screw clockwise until it does.

4.Set the T screw to the setting, at which the engine runs precisely at idling speed, but not faster.

5.Make a fine adjustment, turning the L screw so that the engine will run at max. idling speed. Then turn the L screw max 1/4 of a turn counterclockwise.

6.Then turn the T screw to increase the engine speed, if necessary.

NOTE!

When setting the H jet, the max. permissible full-throttle interval is 10 seconds, after which the engine must run at idling speed for at least 10 seconds.

High speed jet, H

1.Start the blower as described on page 13 and alternate letting it run at idling speed and at half throttle for 1-2 minutes to warm up.

2.Give the engine full throttle and adjust the H screw until the engine runs at maximum speed.

3.Turn the H screw 1/8 of a turn counterclockwise (less than 1/8 of a turn if the stop restricts this adjustment).

20 – English

225B X-Series, 225B specifications

The Husqvarna 225B X-Series is a powerful and versatile backpack blower designed for both professional landscapers and homeowners seeking efficient lawn care solutions. This tool has garnered a reputation for its balance of performance, comfort, and ease of use, making yard maintenance less of a chore and more of a pleasure.

At the heart of the 225B X-Series is its robust engine, which is engineered to deliver an impressive performance with minimal emissions. The blower features a 25.4cc two-stroke engine, providing strong airflow while adhering to stringent environmental regulations. This means you can rely on the 225B not only for power but also for a cleaner operation. The engine is also equipped with advanced air injection technology that removes larger debris particles before they reach the air filter, extending the life of the filter and maintaining optimal performance over time.

The ergonomics of the 225B X-Series have been meticulously designed to enhance user comfort. It features an adjustable harness that evenly distributes the weight across the shoulders, reducing fatigue during prolonged use. The padded straps and ergonomic design ensure a snug fit, allowing users to maneuver freely while effectively clearing debris.

One of the standout features of the Husqvarna 225B is its intuitive controls. The blower is equipped with a cruise control feature, which allows the user to set the desired speed of the airflow without having to continuously hold the throttle trigger. This is especially useful during extended periods of operation, as it gives the user the ability to focus on maneuvering the blower rather than controlling the speed.

The 225B X-Series also boasts a lightweight design, weighing in at only 11.2 pounds. This lightweight construction enhances mobility and makes it easier for users to carry the blower around their properties. Furthermore, it has a compact design that enables access to tight spaces where larger blowers might struggle to reach.

In summary, the Husqvarna 225B X-Series is a high-performance backpack blower that incorporates advanced technologies and user-friendly features. With its powerful engine, ergonomic design, and intuitive controls, it is well-suited for a wide range of outdoor cleaning tasks. Whether you are a professional landscaper or a homeowner looking to maintain your yard, the 225B X-Series is an excellent choice that delivers efficiency and effectiveness.