## Mixture Adjustment Screw 5mm Dellorto PHBN / PHVA This mixture adjustment screw is designed for Dellorto carburetors, specifically the PHBN and PHVA models. It allows for precise adjustment of the fuel-air mixture, resulting in optimal engine performance, improved throttle response, and reduced fuel consumption. ### Technical Specifications: * **Total screw length:** 20.4mm * **Thread diameter:** ~5mm (ISO metric standard) ### Why choose a Dellorto screw? Dellorto is a renowned manufacturer of carburetors and their components. By choosing an original Dellorto screw, you are guaranteed high-quality workmanship, a perfect fit, and long service life. Precise adjustment of the mixture is crucial for proper engine operation, so it's worth trusting proven solutions. Using the correct adjustment screw will allow you to achieve optimal performance and smoother engine operation. This screw is an essential element for anyone who wants to precisely tune their Dellorto PHBN or PHVA carburetor and enjoy a smooth and economical ride.