2024 Husqvarna TE250 Guide • Total Motorcycle
Jul 03, 2023
Introducing the 2024 Husqvarna TE250…
The 250cc 2-stroke engine has for long delivered the best combination of unsurpassed power and lightweight construction. The simplicity and low maintenance cost of the 2-stroke motor has made it a favourite amongst riders for generations. All the latest innovations have been brought into the 2-stroke enduro platform. Many parts of the TE 250 engine have been rearranged, modified, or developed from the ground up.
Continuing its legacy as the most versatile and competitive 250cc 2-stroke enduro machine on the market, the TE 250 is further enhanced for 2024 with the latest technical innovations. With almost every component refined, it’s the introduction of Throttle Body Injection (TBI) that makes the most significant improvement to the class-leading rideability of the TE 250. Together with new, WP XACT Suspension front and rear, the TE 250 has never handled better thanks to the spring forks offering consistent damping. Overall, the new model delivers the best combination of impressive power and handling and is finished with a striking new look to underline it’s continued development.
Husqvarna Motorcycles – Enduro Model Year 2024
Husqvarna Motorcycles’ all-new 2024 TE and FE machines set a new standard for riding offroad. Expertly crafted with new frames, subframes, bodywork, suspension, and brakes, the extended list of shared innovations across the new enduro platform further improves the overall rideability of all seven machines.
The change to WP XACT Closed Cartridge spring forks will be favoured by many riders and by incorporating a mid-valve piston and hydrostop, smooth action and predictable performance is guaranteed. A redesigned WP XACT shock features a new piston to improve comfort and is 100 g lighter and 15 mm shorter while retaining 300 mm of travel. Both the fork and shock settings can be adjusted by hand for a fast and easy personalised set-up.
Working in perfect harmony with the WP suspension is the new chromium molybdenum steel frame. Improving anti-squat behaviour and offering revised flex characteristics, the chassis, which includes a new and much more durable polyamide/aluminium hybrid subframe, guarantees each machine is exceptionally agile without sacrificing straight line stability.
All seven models feature new bodywork adorned with modern, Swedish-inspired graphics and a new high-grip seat cover. The rider triangle has been refined to provide more knee contact and therefore, better control. The slim design of the bodywork offers complete freedom of movement when riding. The new LED headlight produces a brighter light output and is installed with a much more efficient and user-friendly mounting system.
The TE 150, TE 250 and TE 300 2-stroke models are now powered by new engines that are fuelled using Throttle Body Injection (TBI) technology. Introduced to maintain their best-in-class performance, TBI guarantees a much more consistent and controllable spread of power throughout the rev range, even in the toughest of conditions.
The FE 250 and FE 350 machines benefit from new and much more compact DOHC engines. Positioned in the frame two degrees backwards when compared to the previous generation, the engines are designed to centralise mass and contribute to the improved anti-squat behaviour of the chassis. In addition, both engines position all major components as centrally as possible for improved handling as well as generating maximum torque and power.
The line-up is complete with premium components shared across the range including a new LED headlight, enhanced BRAKTEC brakes with high performance GSK discs, a combined start/stop button, ProTaper handlebars, and Michelin enduro tyres.
On the global racing stage, Billy Bolt’s most recent success clearly underlines Husqvarna Motorcycles’ reputation as a highly competitive manufacturer. Competing in the FIM SuperEnduro World Championship, the Husqvarna Factory Racing star secured his third consecutive title indoors to once again demonstrate the exceptional capability of the FE 350.
2024 Technical Highlights
With 9.000 rpm and an overall weight of just 24.8 kg, the new TE 250 engine sets the benchmark in the competitive E1 class. The new TE 250 is the perfect 2-stroke machine to compete with 250cc 4-stroke models.
Engine weights (incl. oil, gear lever, without clutch slave cylinder):
The lightweight engine is designed to provide more torque than any previous 250cc 2-stroke engine without losing its typical 2-stroke character.
The engine is designed to centralize rotating mass for optimal operation with the chassis resulting in a light and agile handling feel. Together with the benefits of mass centralization and reduced weight, the anti-squat behaviour of the chassis was significantly improved by changing the backbone of the steel frame concept while the engine is mounted symmetrically on both sides.
An all-new throttle body fuel injection system (Keihin 39 mm throttle body in combination with Vitesco EMS) and an electronic exhaust control was implemented on the TE 250 engine, allowing for a more compact engine design and free definable values for engine speed and load. The result is a tailormade power delivery for each gear and every situation.
Another focus in development was put on the serviceability of the new TE 250 engine. Service markers on the engine (▲) clearly show where to use washers, making maintenance and servicing easier than in the past.
A new water pump concept includes a shaft featuring a drive wheel instead of the previous centrifugal regulator and is protected by the new aluminium diecast water pump cover. The new water pump concept is shared among all 2-stroke enduro engines, making it easy for dealers to supply spare parts in the rare case it’s needed.
The changes to the engine alone make it easier to go faster for everyone, from beginners, racers, to seasoned professionals.
The cylinder head cover now features an external water temperature sensor located within the tubing for a maximum level of accurate values. A “front” indication makes it close to impossible to mount the cylinder head the wrong way, which will help dealers but also tech-savvy end customers servicing engines by themselves.
The redesigned combustion chamber inserts follow the same logic. Mixing up inserts from different models will be a matter of the past. All these details significantly improve the overall engine quality.
The enduro specific cylinder timing and porting results in a higher compression ratio and no compromise between the motocross and enduro range as each engine configuration is tailor made for its own use case.
The cylinder features a 66.4 mm bore. The highly innovative electronic exhaust control manages the opening of both, the main exhaust and lateral exhaust ports via newly developed kinematics, activated via an actuator. On the TE 250 the main exhaust port opens before the lateral exhaust port opens to deliver maximal, yet controllable power.
The results are a significantly improved rideability, engine control and a larger adjustability range of the engine characteristics (differences between the 2 engine maps).
The power valve can be controlled according to the throttle position and engine rpms (vs. only engine rpms on mechanical system). Additionally, its auto-calibrating, meaning there’s no more hassle with wrong power valve adjustments.
The machined finish on the upper contour of the exhaust port ensures accurate port timing delivering unrivalled performance in every situation.
The crankshaft is designed with weight reduction in mind to increase the liveliness and response of the engine. The perfect balance of rotating masses is achieved by balancing the weights of the crankshaft flywheel, the new rotor and the counter balancer shaft. With a perfect combination of these components, vibrations are kept to an absolute minimum. Engine internals are also positioned to ensure that the rotational mass created has very little effect on the handling of the motorcycle.
Counter balancer shaft
The TE 250 features a laterally mounted counter balancer shaft. This shaft significantly reduces vibrations resulting in a smoother and more comfortable ride with less rider fatigue.
The new TE 250 engine is designed with mass centralisation and weight reduction as one of the main criteria. As a result, the crankcases have been designed to house the internal components of the engine in the perfect position to achieve the ideal centre of gravity while adding the least possible weight. The casings are manufactured using a high-pressure die cast production process, resulting in thin wall thickness while retaining exceptional reliability.
The black powder coating provides additional durability and a premium look, while service markings and oil level markings improve the serviceability. Additionally, the engine is connected to the frame with symmetrical engine mounts (left and right side) resulting in an improved flex characteristic.
The 6-speed gearbox is manufactured exclusively by Pankl Racing Systems ensuring the highest level of durability and reliability. The gearbox features specific enduro gearing while the new gear lever features an innovative tip design that prevents dirt build-up. A new transmission ventilation concept rounds of the shift mechanism.
The TE 250 features a Dampened Diaphragm Steel (DDS) clutch. The exclusive characteristics of this system include a single diaphragm steel pressure plate instead of traditional coil springs. It integrates a damping system for better traction and durability. The clutch basket is a single-piece CNC machined steel component that allows the use of thin steel liners and contributes to the compact design of the engine.
The Husqvarna 2-stroke enduro models come with an all-new electronics-controlled fuel injection. The Throttle Body Injection (TBI) was initially introduced with the 2023 2-stroke motocross range.
In cooperation with Keihin, we developed a 39 mm throttle body fulfilling the needs of an innovative and state of the art 2-stroke enduro injection. The ECU is supplied by Vitesco and works in harmony with the Keihin throttle body by always delivering the right amount of air-fuel mixture. Therefore, the ECU continuously analyses water temperature, air temperature, ambient pressure, pressure within the crankcase, rpm and Throttle Position (TPS) to calculate the perfect air-fuel mixture for any riding situation.
Additionally, the reed valve case received an important design update too. Newly added composite flaps on the outside of the reed valve case provide an improved sealing of the intake tract. This new design avoids fuel excess in extreme up or downhill sections, which could lead to overly rich engine settings while Boyesen Inc. continues to supply the carbon fibre reed petals inside the reed valve case.
A beneficial side effect of the new Electronic Fuel Injection and the ECU is the implementation of the innovative electronic exhaust control.
With all these innovative features it was also possible to further refine engine maps on the 250 enduro engine. Map 1 is the standard, more mellow map for linear, predictable power, while Map 2 is the more aggressive map for added throttle response and a crisper, explosive power output. Both maps can be selected via the new 2-stroke Map Select Switch on the left side of the handlebar.
Additionally, the ECU controls the specific amount of oil injected into the throttle body. It’s not consistently a mix of 1:60 but varies pending on the riding situation and can be leaner or richer.
The new TBI injection has the big benefit of a more homogeneous fuel/air mixture due to a later oil injection compared to the older TPI engine. Now (TBI), the injection point is at the membrane flange while in the past (TPI) the position was at the throttle body. The oscillation of membranes increases the oil/fuel mix further and leads to an unreached level of atomization. As a result, the engines have a lower risk of engine seizing, a better internal combustion and a better rideability in all conditions. The drawback is a higher fuel and oil consumption.
The engine character of the TPI engines was not known for being very lively. Actually, quite often in low revs with low engine loads, “oil nests” were common, which led to delayed and sluggish engine responses. This is now a thing of the past and the new engines are much more versatile, fulfilling the needs of different rider levels and use cases. From hard enduro to classic enduro.
The Husqvarna enduro range now comes with E-Start only. A kickstart is not in place any longer and cannot be retrofitted. The starter motor comes without any intermediate shaft, saving weight and allowing a compact engine design with perfect integration. A robust but also compact cover protects the starter motor from damages caused by roost or rocks. The 12.8V 2 Ah Lithium-Ion battery is placed under the rider’s seat close to the centre of gravity. The engine can easily be put to life by pressing the new combined start/stop switch on the right side of the handlebar. A new high-quality stator and pickup is built into the TE 250 engine for improved reliability and an efficient power supply for the electronics.
High-quality stator and pickup → improved reliability / efficient power supply for electronics
Manufacturer Specifications and appearance are subject to change without prior notice on Total Motorcycle (TMW).2024 Husqvarna TE250 Totalmotorcycle.com Key FeaturesHusqvarna Motorcycles – Enduro Model Year 20242024 Technical Highlights2024 Husqvarna TE250 Totalmotorcycle.com Features and Benefits