The Genuine Buddy 125 carburetor diagram shows the complete fuel and air metering system, including the carburetor body, throttle valve plate, needle jet, main jet, idle jet, float bowl, float valve, diaphragm assembly, choke components, and related gaskets and fasteners. This diagram is used to identify OEM replacement parts for fuel delivery service, carburetor cleaning, tuning, and full rebuilds. The carburetor is responsible for mixing air and fuel in the correct ratio to ensure smooth starting, stable idle, and proper engine performance. Common repairs include cleaning clogged jets that cause poor acceleration or hard starting, replacing a sticking float valve that leads to flooding or fuel starvation, servicing a torn diaphragm that causes throttle response issues, and rebuilding the carburetor to restore consistent fueling and drivability.