Lectron BILLETRON PRO 38 Carburetor Kit for 2000+ YZ250/X
Fits all 2000-2023 Yamaha YZ250 and 2016-2023 YZ250X (2T)
A groundbreaking carburetor that redefines two-stroke performance for 125cc-299cc motors. With innovative design and precise engineering, experience unprecedented torque, horsepower, and rideability gains. The PRO SERIES boasts tailored air flow, velocity dynamics, and three adjustable fuel circuits for optimal coordination. Instant fuel activation, our XCELERATOR Metering Rod, and quick screw adjustments make it the most powerful choice available. Take charge of your two-stroke's performance and adapt effortlessly to upgrades.
1. Cutting-Edge Torque Jet: This feature redefines the way fuel delivery is synchronized with air flow. The performance gains achieved through the Torque Jet, in combination with the proven metering rod technology's enhanced atomization and the dynamic top-end fuel adjustability of the power jet, result in the ability to harmonize fuel delivery with air flow, resulting in unprecedented power and torque gains. The Torque Jet acts as an additional layer of performance enhancement, synergizing with existing features to create an exhilarating and responsive riding experience.
2. Tailored Bore Design: The PRO-SERIES 38 sets a new standard with its meticulously engineered bore design. Carefully crafted to maximize air flow and velocity dynamics to your engines capacity, this design caters to the specific volumetric capabilities of 125cc-299cc. At every position, the carburetor optimizes air intake, translating into consistent and abundant power across the entire RPM range. This strategic design sets the stage for exceptional rideability and unbeatable power output.
3. Ready Active Fuel Circuits: The PRO-SERIES ensures uninterrupted response by maintaining fuel circuits in a state of readiness. Through vacuum activation, the fuel circuits remain consistently primed, mitigating any possibility of dead spots when transitioning between multiple throttle positions. This rider oriented design erases the lag often encountered in conventional setups, delivering precise throttle response. Whether tackling the track or navigating challenging terrain, the PRO-SERIES provides big power and unfailing predictability in every riding scenario.
4. Patent Pending XCELERATOR Metering Rod: Our XCELERATOR rod provides a brief period of extra fuel during large throttle openings that lets the engine accelerate more quickly until it can more effectively draw fuel on its own. This manifests itself as vastly increased throttle response, more immediate power at all RPM, more low-end torque (up to 20%), and the ability to tune for more top end power (1-2%) without sacrificing any bottom end power. All of this is in addition to the benefits of our standard metering carbs with no negative impact on rideability.
5. Enhanced Needle and Seat: The PRO-SERIES incorporates an updated needle and seat mechanism. This enhancement ensures excellent sealing and heightened resistance, mitigating fuel leakage and optimizing fuel atomization. With improved fuel control, the carburetor maintains precise fuel delivery even under demanding conditions, contributing to consistent performance and reduced maintenance requirements.
The BILLETRON™ PRO-SERIES represents the pinnacle of two-stroke carburetor technology, where each feature has been meticulously engineered to provide ground breaking performance, adaptability, and rider control. It's a harmonious integration of advancements that collectively elevate the riding experience to unbeatable heights.
Includes:
- Raw Aluminum PRO 38 carburetor
- Xcelerator metering rod (installed)
- Chrome plated slide
Finish:
- Tumbled Finish, Billet Aluminum (Carb in gallery images is for reference only. Carb will ship with raw aluminum finish)
Fitment:
- 2000-2023 Yamaha YZ250 and 2016-2023 YZ250X (two-stroke only)
- SPECIAL NOTE: Add optional TPS (Throttle Position Sensor) for 2022+ models (add $50)
