Lectron PRO-SERIES Carburetors | Designed & Built for Maximum Performance

Performance Without Limits - Instant Response, No-Hassle, Pure Power.

HIGHLIGHTS SUMMARY

⚡ XCELERATOR Rod — Instant response without hesitation, even at low RPMs
🧨 Torque Jet Circuit – Adds low-end torque and throttle hit for instant acceleration
🔁 Power Jet – Add or takeaway fuel at top-end within seconds for optimal power while wide open
🎚️Ready-Active Circuits - Internal fuel circuits pre-engaged for immediate fuel delivery and zero throttle hesitation
🧪 Fuel & Mod Flexibility - Easily tune for change of fuels, premix ratios, & mods with simple turn of the Torque Jet & Power Jet
🛡️ Billet Aluminum Construction — Lightweight, durable, and precision machined

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FULL HIGHLIGHTS

Xcelerator Metering Rod

Instant Response. No Bog. All Throttle.

Designed to mimic an accelerator pump—without the complexity—the Xcelerator Metering Rod delivers fuel precisely when you need it. Whether you’re rolling it on or whacking it wide open, this circuit reacts instantly for throttle response you didn’t think a carb could deliver.

Torque Jet + Power Jet

Dynamic Fueling. Broad Power. No Flat Spots.

Lectron’s synchronized circuit design delivers torque where you need it and top-end power when it counts. The Torque Jet kicks in for crisp off-idle throttle, while the Power Jet lets you fine-tune the high end in seconds. The result? A seamless, adjustable powerband without hesitation.

Ready-Active Circuits

Always On. Always Optimized.

Pre-configured internal fuel circuits are primed and ready the moment you hit the throttle. No guesswork, no setup delay—just clean, consistent fueling across all conditions, built right into the design.

Air-Redirect Slide

Targeted Airflow. Sharper Response.

Engineered to channel low-throttle airflow directly at the metering rod, this slide enhances fuel signal where it matters most. Better signal means better response, especially in off-idle and low-RPM situations.

Fuel & Mod Flexibility

Switch Fuels. Swap Mods. Stay Dialed.

Whether you're a tuner, racer, or have plans to build your bike. Switching to race gas, running a different premix, or adding a new pipe can be fine-tuned for without hassle or new jets. Our Torque Jet and Power Jet circuits let you adapt quickly—no full teardown needed.

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Let customers speak for us

from 164 reviews

Love it. Response is fast. Easy to dial it in, very simple.

Nicholas
H-Series EVO Carburetor for 2-Stroke | Performance + Simplicity (38mm)
H-Series EVO Carburetor for 2-Stroke | Performance + Simplicity (38mm)

Its great

Shawn
Lectron PRO SERIES 38mm & 40mm Carb Kit for ATV's & Quads | Peak Performance & Throttle Response
Lectron PRO SERIES 38mm & 40mm Carb Kit for ATV's & Quads | Peak Performance & Throttle Response

I’m over delighted with the product I’m probably gonna buy one for one of my other bikes

RENE
PRO SERIES Carburetor Kit for 4-Stroke | Precision Fuel Delivery, Peak Performance, Ultimate Simplicity (38mm-40mm)
PRO SERIES Carburetor Kit for 4-Stroke | Precision Fuel Delivery, Peak Performance, Ultimate Simplicity (38mm-40mm)

Great carbs fast shipping

Darryl
Lectron Carburetor Kits for Dual-Cylinder Engines | High Performance Upgrade (30mm-59mm)
Lectron Carburetor Kits for Dual-Cylinder Engines | High Performance Upgrade (30mm-59mm)

Gave me exactly in the picture plus a bonus sticker

Anthony
Top Cover Screws | Legacy & H-Series Carburetors (3x Pack)
Top Cover Screws | Legacy & H-Series Carburetors (3x Pack)

I liked it because it fixed the problem I was having. I'll be running it to continue enjoying my TRX.

R.F.M.J.
Lectron PRO SERIES 38mm & 40mm Carb Kit for ATV's & Quads | Peak Performance & Throttle Response
Lectron PRO SERIES 38mm & 40mm Carb Kit for ATV's & Quads | Peak Performance & Throttle Response

The best upgrade you can get for your carbureted dirtbike! Makes tuning an ease and allows for a one and done setup. The best part is that the power delivery is felt stronger everywhere throughout the powerband.

Jayce
PRO-SERIES Carburetor for 2-Stroke | Max Performance & Precision (38mm-40mm)
PRO-SERIES Carburetor for 2-Stroke | Max Performance & Precision (38mm-40mm)

Excactly what i needed thank you Hunter at Lectron!

Hunter
Cable Adjusters | Legacy & H-Series Carburetors (2x Pack)
Cable Adjusters | Legacy & H-Series Carburetors (2x Pack)

I am very happy with the ride quality and power delivery. I had to adjust the needle 1/4 turn leaner but other than that it was easy to install and get going. The videos out there are great to watch before you install as well.

Aaron
H-Series EVO Carburetor for 2-Stroke | Performance + Simplicity (38mm)
H-Series EVO Carburetor for 2-Stroke | Performance + Simplicity (38mm)

Bolted up and ran great 10/10

Alexander
Lectron Carburetor Kits for Dual-Cylinder Engines | High Performance Upgrade (30mm-59mm)
Lectron Carburetor Kits for Dual-Cylinder Engines | High Performance Upgrade (30mm-59mm)

Products works great

Niick
BILLETRON 25mm/29mm Carburetor for 2-Stroke | Quick, Responsive, & Simple (65c-112cc)
BILLETRON 25mm/29mm Carburetor for 2-Stroke | Quick, Responsive, & Simple (65c-112cc)

Works great! The installation of the carb and cable adapter worked perfect. High quality part.

Alex
Slip-In Throttle Cable Adapter | BILLETRON & PRO-SERIES Carbs
Slip-In Throttle Cable Adapter | BILLETRON & PRO-SERIES Carbs

My 2008 WRF 250 runs amazing after installing this carb! Easy install as well

Chris
PRO SERIES Carburetor Kit for 4-Stroke | Precision Fuel Delivery, Peak Performance, Ultimate Simplicity (38mm-40mm)
PRO SERIES Carburetor Kit for 4-Stroke | Precision Fuel Delivery, Peak Performance, Ultimate Simplicity (38mm-40mm)

Excellent

C.H.
BILLETRON 25mm/29mm Carburetor for 2-Stroke | Quick, Responsive, & Simple (65c-112cc)
BILLETRON 25mm/29mm Carburetor for 2-Stroke | Quick, Responsive, & Simple (65c-112cc)

Love the 29 mm on my stock bore 4 mil stroker crank banshee

Travis
Billetron 29mm Dual Carb Kit for ATV & Quad | Quick, Responsive, & Simple
Billetron 29mm Dual Carb Kit for ATV & Quad | Quick, Responsive, & Simple