Not everyone is going to be seduced by the new generation fuel-injected TPI and TEi Austrian two-strokes, Either because they are expensive or simply just don’t want to accept this darn right ugly new world we live in these days. For many there’s a significant amount of nostalgia attached to riding a two-stroke, and when those certain folk think of two-strokes they expect to see that lovely old mechanical wonder that is the carburettor attached to its bore or crankcase, But is there another alternative to fuel in – jection, something that can transform a stock non-fuel injected smoker into a tree hugging green machine? Is there an alternative that removes the necessity to faff around with jetting every time you encounter a change in elevation or weather, or improves fuel efficiency, throttle response and wait for it – adds a few ponies to boot? Did it exist, and if it did, could it rate as a practical alternative? The answer is that it does exist, It’s an un-temperamental system that doesn’t use a needle and jets to measure-out the fuel, instead a metering rod. Yes, Its working principle is exactly the same as that of other brands of products you already know. It has passed countless tests, and its performance is even better ! However, many people care about its price. This time your opportunity is here. We believe this is the most valuable deal you will have !!!

XTNG was created in 2018, A company specializing in R&D and manufacturing of mechanical fuel atomization systems, Starting from the XTNG third-generation carburetor, all parts are manufactured and processed in mainland China.

We consists of a group of energetic riders and mechanics who love dirt bikes, We have the same hobby. Yes, What you want is exactly what we want.

In 2019-2020, We manufactured some carburetors similar to Lectron. We call them XTNG GEN1 carbs.

In February 2019, we released XTNG GEN1 carburetors for the first time. We evolved the Lectron HV Venturi into a completely smooth tube.After this, We saw Lectron launched the H Series, This is totally a coincidence.

Since then, H has replaced HV, which fully demonstrates that smooth airflow can significantly increase the power of the engine compared to airflow that may be turbulent.

From May 2021 to May 2022, Our second-generation carburetor was released, we called it GEN2, GEN2 completely replaces GEN1, Because we found that GEN1 had design flaws, This defect is mainly manifested in the lack of bottom end torque of the engine. We changed the slider from the original shape to an "H" shape, This improves the shortcoming of GEN1's lack of air tightness, we still keep the idle mixing ratio circuit, GEN2 improves the defect of insufficient torque at the bottom end of the engine and has won unanimous praise from users. An interesting phenomenon is that Lectron launched their new generation of products in October 2021: Billetron 38, which also uses an "H" slider design, and GEN2 was released 5 months earlier than Billetron 38. It should be noted here that the "H" slider originated from the E.I. prototype in 1976-1977.

In September 2020, our third-generation carburetor GEN3/GEN3-PRO was launched. GEN3 was further improved on the basis of GEN2. Adopted the patent published in 2006: teardrop-shaped Venturi design, and a fully enclosed float chamber system with internal pressurization, Using a mechanism like the Qwik Silver II allows ROD adjustment outside the carburetor, In addition, we still retain the Idle Fuel Assist Circuit and the Idle Air Assist Circuit and Power Jet, which will bring users wider adjustability.

From years of product practice, we have found that the traditional smart-carburetor metering rod cannot provide fuel for the engine comprehensively and accurately. The meaning of adjusting the metering rod is not to change the idle fuel mixture ratio, but to change the fuel ratio in the mid or top end, If you adjust the metering rod for the idle smooth or strong bottom end torque, then you are likely to destroy the fuel ratio in the mid or top end, If you do metering rod adjustments for the mid or top end then you may lose smooth idle, It's even more of a nightmare for those unhealthy engines, That's why we add extra circuitry.

In November 2024, the latest generation of our product, named GEN3+, was officially launched. GEN3+ is a derivative of the GEN3-PRO, featuring a fuel pressurization system that can also be seen as an internal ventilation system. This modification significantly improves throttle response and overall powerband performance.The new generation introduces a fully optimized and redefined metering rod logic, while retaining our highly acclaimed fuel-assist and air-assist circuit systems. Additionally, we’ve incorporated new self-service options, including a torque-boost circuit similar to those of our competitors, as well as compatibility with parallel integration of Japanese solenoid systems.

The GEN3+ supports multiple circuit modes, including a single-circuit operation mode identical to that of our competitors. This offers significant convenience for beginner users who may not be skilled in carburetor adjustments.For more experienced riders or mechanics, however, the multi-circuit mode might be the best choice. It eliminates the need to compromise on limited adjustability and spares you the endless trial-and-error process of experimenting with different metering rods.

What is low-RPM torque performance?
To understand this, find a moderately steep trail through the woods and try climbing it slowly in first or second gear. If the engine doesn’t stall and can maintain very low RPMs, it’s a clear indicator of good torque performance. These extreme low-RPM capabilities cannot be fully evaluated on a dynamometer. Real-world riding experience is the truest test!As we all know, manufacturers love to showcase dyno screen captures to prove their claims. While a dyno can provide a clear answer about top-end performance, it rarely highlights performance below 3,000 RPM. In the world of enduro riding, however, riders frequently operate below this threshold, especially in challenging wooded terrain.

What will you get?
Compared to other competitors on the market, including traditional carburetors, jet kits, or metering block kits, you’ll experience:

• The most powerful low-end torque output ever!
• Consistent and robust top-end performance!
• Unparalleled throttle response!
• Linear yet aggressive power delivery!
• The longest fuel range!
• The broadest altitude adaptability!
• The most convenient adjustment process!

Used a metering rod derived from Bernoulli's law.

The metering rod is also an air density sensor and an accurate fuel metering device.

Get all the strong power with Variable Venturi.

Internal ventilation system for enhanced air density compensation.

The separate air circuits and fuel circuits can be switched and combined at will.

The separate air circuits and fuel circuits can be switched and combined at will.

Keep a consistent air-fuel ratio with different altitudes and temperatures.

*Variable Venturi

*100% Tool-Free Adjustment System

*Internal ventilation system

*Simple installation

*Metric screw for cap

*Tool-free fuel release from bowl

*10% increase in performance

*30% improvement in fuel economy

*50% reduction in exhaust emissions

*Automatically adapt to various altitudes

*Automatically adapt to various weather temperatures

*Automatically adapt to various humidity

*Add idle fuel assist circuit

*Add idle air assist circuit

*Add Power Jet

*Add torque gain circuit (Option)

*Switchable between Single-circuit/Multi-circuits

*Transparent bowl for easy monitoring of fuel level

*Allows OEM solenoid valve system (Option)

Add TPS system (Option)