Features: Easy Start This motorcycle carburetor hand pull start throttle screw allows for convenient engine start, providing a quick and hassle free experience. Precise Idle Adjustment With the idle adjustment function, this product allows for precise tuning of the motorcycle's idle speed, enhancing engine stability and responsiveness. Motorcycle Enthusiasts Designed for motorcycle enthusiasts who are interested in fine tuning their motorcycles, this product enables them to adjust the idle speed and improve the starting experience. Repair Shops In motorcycle repair shops, technicians can use this product for maintenance and adjustment work, providing professional services to motorcycle owners. Enhances Performances In motorcycle event, using this product allows for precise adjustment of the motorcycle's idle speed, improving engine responsiveness and driving stability, ultimately leading to better race results. Specifications: Material: Metal Type: Mushroom Head: Approx. 61mm/2.4in(Length) Round Head: Approx. 75mm/2.95in(Length) Package Includes: 1x Manual Choke Starter Fast Idle Plunger note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.