Lectron Fuel Systems

The Lectron PRO SERIES 4-Stroke Carburetor delivers crisp power, instant throttle response, and smooth control with no jetting required. It’s designed specifically for modern 4-stroke engines and includes a chrome-plated brass slide for an ultra-smooth throttle pull, plus a throttle assembly and cable to make setup simple.

From trail bikes to track builds, the PRO SERIES is made for riders who want cleaner response, easier tuning, and a carb that just works.

Common applications include DRZ400, DR650, XR650, CRF250, CRF450, YZ250F, YZ450F, WR250F, WR450F, WR426F, KTM 250F, 450F, 520, 525, 530, and more.

Trusted by racers, builders, and riders around the world for over 50 years.
www.lectronfuelsystems.com

𝗢𝗻𝗲 𝗿𝗼𝗱. 𝗢𝗻𝗲 𝘀𝗺𝗼𝗼𝘁𝗵 𝗳𝘂𝗲𝗹 𝗰𝘂𝗿𝘃𝗲.
Lectron’s metering rod design replaces the traditional stack of fixed jets with a precision-ground tapered rod that rises with the throttle slide. As airflow increases, the rod exposes more fuel area, delivering what the engine needs without circuit handoffs, overlap zones, or transition gaps.

Because it reacts to real airflow and pressure changes inside the carb, it helps compensate for elevation, temperature, and riding conditions.
Simple. Precise. Proven.

Happy Fourth of July from all of us at Lectron Fuel Systems! As the USA celebrates 250 years of freedom, we’re grateful for the riders, racers, families, and communities that make this country what it is.

Happy Independence Day!