Idle Circuit Screw Kit | Compatible with PRO-SERIES & BILLETRON Products 1970-1990-bultaco-pursang-esr3756445 These are designed to be

These are designed to be wear items so the aluminum bodies of the carbs have a much longer operating life than a traditional carburetor with a hardened or coated slide

Remote choke cable Kit (add on) Includes cable choke assembly and cable

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

0mm needle seat valve is what came in the majority of dirt bike carbs ranging from 65cc to 300cc two strokes

Sold as a set with the guide pin

Idle Circuit Screw Kit | Compatible with PRO-SERIES & BILLETRON Products 1970-1990-bultaco-pursang-esr3756445 These are designed to beCompatible 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