Low speed jet L 240R, 240F, 250R, 252RX | Husqvarna 250 R instruction

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Low speed jet L (240R, 240F, 250R, 252RX)

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.

+ 1/4

CAUTION! If the cutting attachment rotates when the engine is idling the idle adjustment screw T should be turned anti- clockwise until the cutting attachment stops.

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.

WARNING! 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 (240R, 240F)

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.

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 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.

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

High speed jet H (250R, 252RX)

Setting procedure without a load (Blade can be used)

The machine is equipped with speed control in the ignition system. It is extremely important to be aware of this when adjusting the carburettor.

250R, 252RX: Speed control at: 13500 rpm

When attempting to adjust the speed over that speciﬁed, the speed is not changed, but only causes the engine to receive too little fuel resulting in a large risk of engine failure.

Run the machine warm for approximately 5 minutes alternating between short intervals of full throttle and idling. When the carburettor is to be adjusted, apply full throttle and turn the H-needle anti-clockwise until the engine speed reaches 10,500-11,000 r/min (burbles) or until the cap reaches its stop position. Now turn the H-needle slowly clockwise until the engine reaches the speed when the speed control comes into force. In some cases, speed control can come into force at 200-300 revs below or above that speciﬁed. It is important that you do not continue to turn the H-needle clockwise when the engine speed has stabilised. Screw the H-needle (anti-clockwise) a few tenths of a turn instead.

Setting procedure with a load (Trimmer head should be used)

Ensure the length of the trimmer cord is correct, i.e. exactly reaches the knife on the trimmer guard. Use either 3 mm or 3.3 mm diameter trimmer cord.

Run the machine warm for about 5 minutes mostly at full throttle. When the carburettor is to be adjusted, apply full throttle and turn the H-needle anti-clockwise until the engine burbles or until the cap reaches its stop position. (If the engine runs smoothly when the cap is in its stop position no further adjustment is necessary!) Turn the H-needle slowly clockwise until the engine runs absolutely smoothly. (Burbling has stopped completely). Now screw the H-needle (anti- clockwise) a few tenths of a turn.

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

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250 R specifications

The Husqvarna 250 R stands as a prominent contender in the realm of off-road motorcycles, particularly for those who seek performance and rideability in rugged terrains. This model encapsulates a combination of advanced engineering and rider-focused design, making it a favorite among both amateur and experienced riders.

One of the standout features of the Husqvarna 250 R is its powerful engine. The bike is powered by a 249cc, single-cylinder, two-stroke engine, optimized for maximum performance across various riding conditions. With its lightweight construction, the engine delivers impressive power without sacrificing maneuverability. Riders can expect robust acceleration and excellent throttle response, which is crucial for navigating challenging trails and obstacles.

The Husqvarna 250 R also incorporates cutting-edge technologies that enhance its performance. One notable feature is the electronic fuel injection system, which ensures optimal fuel delivery and improved efficiency. This technology not only contributes to the overall performance of the engine but also minimizes emissions and enhances fuel economy. The bike’s adjustable power valve allows for customizable power delivery, catering to the rider’s preferences and the riding environment.

Another significant aspect of the Husqvarna 250 R is its lightweight chassis, constructed from high-quality materials. The frame is designed to provide excellent rigidity while keeping the overall weight to a minimum. This balance of strength and lightness contributes to the bike's agility and ease of handling, making it versatile for various riding styles and terrains.

Suspension is another critical feature of the Husqvarna 250 R. The bike is equipped with fully adjustable WP XACT forks at the front and a WP XACT shock at the rear, offering superior damping capabilities. This advanced suspension system provides enhanced stability and comfort, allowing for better control during aggressive maneuvers or when tackling rough terrains.

The ergonomics of the Husqvarna 250 R are tailored to enhance the riding experience. The seat is designed for optimal comfort, providing support during long rides while ensuring that riders can easily shift their weight when necessary. The bike also features wide footpegs that deliver excellent grip and control.

In summary, the Husqvarna 250 R is a remarkable off-road motorcycle that combines performance, advanced technology, and rider-friendly design. Its powerful engine, lightweight chassis, superior suspension system, and ergonomic features make it an ideal choice for adventure enthusiasts looking to conquer the trails with confidence and agility. Whether navigating through tight woods or tackling open trails, the Husqvarna 250 R is engineered to deliver an exhilarating riding experience.

Husqvarna 250 R Low speed jet L 240R, 240F, 250R, 252RX, Fine adjustment of the idle speed T

Models: 250 R