Yamaha 400F-450F Kits | BILLETRON™ PRO

1. Patent Pending Xcelerator Metering Rod: Our new, proprietary metering rod design brings previously unacheivable levels of response. By adding the performance gains of an acelerator pump without the added complexity, the Xcelerator metering rod allows for instantanious power at any RPM or throttle position. This seamless, instant throttle response inspires the confidence to push your bike to new limits. 

2. 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.

3. Tailored Bore Design: The PRO line of Lectron carburetors holds a new standard with its meticulously engineered bore designs. Carefully crafted to maximize air flow and velocity dynamics to your engines capacity, this design caters to the specific volumetric capabilities of the engine. 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.

4. Ready Active Fuel Circuits: Ensuring 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.

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 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.

LEARN MORE? ADDITIONAL LINKS BELOW

Performance

• Patent Pending XCELERATOR metering rod for unmatched response, has the benefits of an accelerator pump without the complexity
• Increased peak horsepower of +10%
• Increased power availability – reach peak horsepower at lower speeds
• Increased low RPM torque +10%
• Precision tunability - pin point mid and top end fuel delivery without compromising low end throttle response
• Torque jet for cruising speeds
• Power jet for highway speeds and wide open
• Increased Fuel Economy - 30%

Simplicity 

• Idle control comes from the metering rod and idle screw settings like our two stroke carbs
• Set it and forget it! - Dial in your bike and allow the technology to mechanically compensate for air property changes. Drop the complexity of rejetting your carburetor.
• Adjustable power and torque jet – easy, on the track tuning, for mid to wide open fuel delivery. Adapt to the technicality, and rider preference, of each track without sacrificing performance across all throttle positions
• Improved Idle - Centralized and focused air flow to the fuel signal creating improved idle consistency

Initial tuning Your PRO-SERIES Carburetor
Dialing in your bike has never been easier. The BILLETRON™ PRO-SERIES carburetor is a straightforward process designed to optimize your engine's performance, completed quickly.

Fuel Circuit Adjustments
Tuning your PRO-SERIES involves simple adjustments to specific fuel circuits based on your throttle position. Each circuit is tailored to a specific throttle range, allowing you to precisely fine-tune the fuel delivery:

Metering Rod: Adjust for 0-5% Throttle (idle RPM)
Torque Jet: Adjust for 10%-50% Throttle
Power Jet: Adjust for 55%-100% Throttle

Fine-Tuning Torque Jet and Power Jet
The Torque Jet and Power Jet can be easily adjusted by turning their respective screws:

Turning the jet screw in will decrease the amount of fuel.
Turning the jet screw out will increase the amount of fuel.

Adjusting the Metering Rod
The metering rod controls fuel delivery during idle RPM and low throttle ranges. Fine-tuning the metering rod is done by adjusting its length:

Turning the metering rod in (shortening) will increase fuel delivery.
Turning the metering rod out (lengthening) will decrease fuel delivery.

User-Centric Tuning
While initial tuning ensures optimal performance, it's worth noting that further adjustments are typically not required for day-to-day riding. However, if you wish to tailor your carburetor to specific riding conditions or preferences, you have the freedom to make fine adjustments as needed to accomodate your environment.

For comprehensive and detailed instructions on tuning your PRO-SERIES carburetor, please refer to the Tuning Manual included in your package. This dedicated manual provides step-by-step guidance, safety precautions, and tips for achieving optimal performance.

Unlock the full potential of your carburetor and enjoy a customized riding experience.