JIS screwdriver (not Phillips), carb cleaner spray, compressed air, 0.5mm guitar string for passages.
Often found on the side or bottom, used for fine-tuning the idle mixture. Bottom Section (Float Bowl): Float & Needle Valve: Controls the fuel level inside the bowl. Regulates fuel flow at wide-open throttle (WOT). Pilot Jet: Controls fuel flow at idle and low speeds. Float Bowl Gasket: Seals the bowl to the main body to prevent leaks. Visual Reference mikuni bs25 carburetor diagram patched
The Mikuni BS25 carburetor is a vacuum-piston carburetor designed for small engines. It features a simple, reliable design with a few key components: JIS screwdriver (not Phillips)