The SCAR Mixture Screw (aluminum, CNC machined) allows you to adjust the mixture without additional tools. Simply replace the original screw with the SCAR Mixture Screw. Suitable for Keihin 4 Stroke FCR carburetors (HONDA, YAMAHA, SUZUKI, KAWASAKI, and KTM). The SCAR Mixture Screw is precisely engineered, ensuring optimal performance and durability. Made from high-quality aluminum, it provides reliability and longevity even in tough conditions. Designed to improve your bike's fuel mixture adjustment, making it easier and faster to tune. Perfect for motocross enthusiasts who need quick and efficient adjustments on the track or in the garage.