Idle Circuit Screw Kit | Compatible with PRO-SERIES & BILLETRON Products 1970-1990-bultaco-pursang-esr3756445 Built from heat- and fuel-resistant

Built from heat- and fuel-resistant materials to withstand real-world riding conditions

then assemble and ship a complete kit tailored to your needs

Recommended for use with H-SERIES and Legacy Series Lectron carburetors

Dominate every ride

Idle Circuit Screw Kit | Compatible with PRO-SERIES & BILLETRON Products 1970-1990-bultaco-pursang-esr3756445 Built from heat- and fuel-resistantCompatible with PRO SERIES & BILLETRON Products Fine tune your idle with precision. This Idle Circuit Screw is a direct replacement for PRO SERIES and BILLETRON carburetors equipped with externally adjustable idle circuits. Machined for smooth threading and consistent control, it allows quick adjustments to idle fuel deliveryideal for dialing in cold starts, low speed stability, and off throttle transition. Whether youre replacing a worn screw or