The Throttle Slide Ball Plunger Screw is installed on the side of the carburetor throttle slide and works together with the click adjustment mechanism to provide the characteristic click-style detent feel during metering rod adjustment. By interacting with the corresponding spring and ball components, it creates the precise “click” indexing sensation used for accurate adjustment positioning.
If this screw becomes damaged or worn, replacement may be necessary. Due to the use of high-strength threadlocker during factory assembly, the original screw typically cannot be removed using a standard hex wrench. Removal usually requires carefully drilling out the original screw using a 2.5mm drill bit. After removal, the threads should be cleaned and restored using an M3×0.5 tap before installing the new screw.
During installation, a small amount of high-strength threadlocker should be applied to the new screw threads before installation. The screw should be tightened fully to the bottom, then backed out approximately 3/4 of a turn counterclockwise to achieve the correct operating position.
All XTNG genuine components are manufactured and quality-controlled under high-standard production systems. We work closely with multiple professional manufacturing facilities certified under ISO9001 and IATF 16949 quality management systems to ensure consistent, reliable, and precision-level manufacturing quality across every component.
From raw material selection to final machining processes, XTNG maintains strict engineering standards throughout the entire production chain. Critical components are manufactured using industry-leading materials, including high-strength aluminum alloys, high-temperature engineering plastics, corrosion-resistant stainless steel, precision brass materials, and premium sealing compounds to ensure long-term durability and stable performance under high vibration, high temperature, and demanding operating environments.
All machined components are produced using high-precision CNC manufacturing processes with strict dimensional tolerance control and optimized surface finishing procedures. Fitment tolerances, surface texture, edge finishing, thread precision, and internal flow-path consistency are all carefully controlled to achieve optimal assembly accuracy, fuel metering stability, and long-term reliability.
Key functional components such as seals, springs, valve assemblies, needle systems, nozzles, and metering components undergo extensive durability testing and multi-environment validation to ensure stable operation under extreme temperatures, prolonged vibration, and high-frequency usage conditions.
XTNG does not view genuine parts as simple replacement components. We consider every original component an essential part of the overall fuel system performance and reliability. For this reason, every genuine XTNG component is carefully selected, tested, and validated to maintain the performance characteristics and long-term quality standards expected from XTNG carburetor systems.
