Husqvarna has just announced its 2020 Off-Road line and we are excited for the all new TPI TE150i. We love this machine with a carburetor and can’t wait to see how it responds to fuel-injection. Below is the official information directly from Husqvarna.
Lightweight and incredibly nimble, the TE 150i features the latest 2-stroke fuel injection technology, giving it all the convenience of modern 4-strokes at a fraction of the weight. The TE 150i is fitted with an electric starter as standard for easy starting in challenging situations. Additionally, the new chassis offers precise flex characteristics, and in combination with WP suspension offers advanced handling characteristics and comfort in the most challenging conditions.
Using the latest 2-stroke fuel injection technology, the TE 150i has all the convenience of modern 4-strokes, eliminating the need to premix fuel or adjust jetting at different altitudes. The engine uses specific shaft arrangements designed to harness the rotating mass of the engine in the ideal center of gravity. The lightweight and compact engine provides a powerful power delivery while maintaining the inherent low-cost maintenance of a 2-stroke.
- Latest generation 2-stroke → fuel injection, powerful, light and compact
- Mass-centralization → significant benefits in handling and maneuverability
Cylinder and piston
The cylinder has a 58 mm bore, which features an innovative power valve design that delivers controllable power throughout the rpm range. The piston is designed to perfectly match the optimized combustion chamber contour delivering the highest level of 2-stroke performance.
Additionally, the cylinder features two inlet positions located on the transfer ports at the rear of the cylinder where a pair of fuel injectors are mounted. The injectors deliver the fuel downwards into the transfer port, which guarantees excellent atomization with the air travelling upward to the combustion chamber. This ensures a more efficient combustion resulting in reduced fuel consumption and emissions.
- Cylinder and piston → revised combustion chamber contour
- Fuel injection → increased efficiency and reduced emissions
With a 54.5 mm stroke, the crankshaft is perfectly balanced to reduce vibrations. The weighted flywheel attached to the crankshaft provides abundant torque and controllable off-road specific power while the larger alternator provides all the power needed for the EFI system.
- Lightweight crankshaft → very little vibration
- Larger alternator → increased electrical power to power EFI system
The crankcases are manufactured using a high-pressure die cast production processes resulting in a thin wall thickness and minimal weight.
To centralize mass, the layout features a shaft arrangement precisely positioned to harness rotating masses at the ideal center of gravity. The reed block features optimized carbon reeds for improved sealing.
- High pressure die-cast production process → thin walls resulting in light weight
- Shaft arrangement → ideal mass centralization
- New reed valves → better sealing
Oil tank & pump
The TE 150i features an electronic oil pump, which feeds vital 2-stroke oil into the engine to keep it lubricated. The pump is located just below the oil tank and feeds the oil via the throttle body, meaning the oil is not mixed with the fuel, eliminating the need for pre-mixing as on traditional 2-stroke engines. The pump is controlled by the EMS and delivers the optimal amount of oil according to the current rpm and engine load. This reduces waste as well as excessive smoke being transmitted from the exhaust.
The oil tank is located beneath the fuel tank and is connected to a filler hose, which runs through the upper member of the frame to a filler cap, conveniently located for easy refills. The tank capacity is 0.7 liter and is fitted with a sensor which illuminates a warning visible to the rider when the oil needs to be refilled.
- Oil pump and tank → convenient solution, eliminates pre-mix
The TE 150i is fitted with a PANKL 6-speed wide range gearbox. The off-road specific ratios are tailored to the 150 cc power delivery. An innovative gear shifter reduces dirt build up, ensuring perfect operation in all conditions.
- PANKL 6-speed gearbox → specific off-road gearing
- Innovative gear shifter → prevents dirt build up ensuring precise control
The TE 150i features a new DS (Diaphragm Steel) clutch. The exclusive characteristics of this system include a single diaphragm steel pressure plate instead of traditional coil springs. 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.
- DS clutch → excellent action and durability
- Continuous 2-stroke development offering maximum performance and low running costs
- Low weight and agile handling
- Hydraulic clutch
- High quality standard components
TE 250i / TE 300i
The TE 250i and TE 300i incorporate the perfect balance between usable 2-stroke power and nimble lightweight handling and feature revolutionary 2-stroke electronic fuel injection. This new-age technology redefines 2-stroke competition motorcycles, cementing their position in the off-road segment for the foreseeable future. Both the TE 250i and TE 300i add convenience and simplicity, doing away with premixed fuel and jetting changes. It delivers efficiency and low emissions while retaining the simple character and inexpensive ownership of a 2-stroke.
The 250 cc and 300 cc 2-stroke engines have long been the best combination of unsurpassed power and lightweight construction. The simplicity and low maintenance cost of the 2-stroke engine have made it a favorite among off-road riders for generations. Both the TE 250i and TE 300i feature a pioneering electronic fuel injection system. This comprises of a set of fuel injectors positioned at the transfer ports, which deliver the ideal amount of fuel to the engine in all conditions. This not only reduces fuel consumption and emissions but also provides a clean and smooth power delivery, giving the beloved 2-stroke the edge over the competition. Additionally, the 250 cc and 300 cc engines have an advanced construction featuring shaft arrangements precisely positioned for greater mass centralization, a counter balancer shaft to reduce vibration, a twin-valve controlled power valve and 6-speed transmission.
The 66.4 mm bore cylinder (72 mm on TE 300i) features a twin valve-controlled power valve system, which delivers smooth and controlled power throughout the rpm range.
For MY20, the exhaust port timing is improved by fully machining the exhaust port window, and with the combination of an optimized power valve drive and adjuster, the function and overall performance of the power valve are improved.
Additionally, the cylinder features two inlet positions located on the transfer ports at the rear of the cylinder, where a pair of fuel injectors are mounted. The injectors deliver the fuel downwards into the transfer port, which guarantees excellent atomization with the air travelling upward to the combustion chamber. This ensures a more efficient combustion resulting in reduced fuel consumption and emissions.
- Dual fuel injectors → excellent atomization, reduced fuel consumption
- Power valve → Machined port window, new drive and adjuster
The lightweight piston is perfectly matched to the cylinder and transmits minimal oscillating mass, ensuring high levels of reliability and performance.
- Piston → fits perfectly to cylinder and combustion chamber
The TE 250i and TE 300i engines are designed to improve mass centralization.
As a result, the lightweight, die-cast engine casings are developed to accommodate the shaft arrangements in the ideal position, centralizing oscillating mass and improving ride-ability. Also, the counter balancer shaft is integrated in a very compact manner, having little effect on the overall design while reducing vibrations.
Additionally, for MY20, a new water pump casing improves cooling by optimizing the flow of coolant.
- Die cast engine casings → mass centralization, improved handling
- New water pump casing → improved cooling
Counter balancer shaft
The engine houses a laterally mounted counter balancer shaft. The balancer significantly reduces vibration resulting in a smoother and more comfortable ride.
- Counter balancer shaft → significantly reduced vibration
The crankshaft features a 72 mm stroke and is balanced in conjunction with the counter balancer shaft for minimum vibration. By incorporating a heavier ignition rotor, the crankshaft produces more inertia than its motocross counterpart, which improves control in the lower rpm range.
A 6-speed PANKL gearbox features off-road specific ratios while an innovative shift lever reduces dirt build up, guaranteeing easy operation in all conditions.
- 6-speed gearbox → off-road specific ratios
- Gear lever → prevents dirt build up and blockage
The TE 250i and TE 300i feature a DDS (Damped Diaphragm Steel) clutch. This means the clutch uses a single diaphragm spring instead of the more common coil spring design, resulting in a much lighter clutch action. This design also incorporates a damping system, which increases both traction and durability. The new model features a new, lighter basked and reworked inner hub, which guarantees better oil supply and cooling to the clutch.
Combined with the Magura hydraulic system guarantees a light and smooth clutch feeling which is almost maintenance and adjustment free.
- DDS clutch → light action with integrated damping system, increased traction and reliability
- Magura hydraulic system → light and smooth clutch action, almost maintenance free
Oil tank & pump
The TE 250i and TE 300i feature an electronic oil pump, which feeds vital 2-stroke oil into the engine to keep it lubricated. The pump is located just below the oil tank and feeds the oil via the throttle body, meaning the oil is not mixed with the fuel eliminating the need for pre-mixing as on traditional 2-stroke engines. The pump is controlled by the EMS and delivers the optimal amount of oil according to the current rpm and engine load. This reduces waste as well as excessive smoke being transmitted from the exhaust.
The oil tank is located beneath the fuel tank and is connected to a filler hose, which runs through the upper member of the frame to a filler cap conveniently located for easy refills. The tank capacity is 0.7 liter and is fitted with a sensor, which illuminates a warning lamp visible to the rider when the oil needs to be refilled.
- Oil pump and tank → convenient solution, eliminates pre-mix
- State of the art 2-stroke technology
- Reduced fuel consumption
- No premix needed
- Smooth and clean power delivery
- Low maintenance costs
- Hydraulic clutch
- Excellent handling and agility