Start the engine and test the ATV:
Often a flat-head (slotted) screw . On most small Suzuki four-strokes, this screw is located toward the engine side of the carburetor and regulates the fuel-to-air ratio at idle and low speeds. The Baseline Setup (Factory Settings) suzuki lt z50 carburetor adjustment
If your ATV is not running or the settings have been tampered with, start by returning the carburetor to its "baseline" factory positions: Start the engine and test the ATV: Often