- Keihin CV carburetor: This is one of the most common carburetors used by Harley-Davison motorcycles. It is a constant-velocity carburetor, designed to provide a consistent air-fuel mixture at different engine speeds.
- S&S Super E/G carburetor: This is a popular aftermarket carburetor that is known for its performance. It is a downdraft carburetor, which means that the air and fuel enter from the top and flow down into the engine.
- Mikuni HSR42/45 carburetor: This is another popular aftermarket carburetor that is known for its performance. It is a flatside carburetor, which means that the throttle slide is flat and moves vertically instead of horizontally.
In recent years, Harley-Davidson has also started to use electronic fuel injection (EFI) on its motorcycles. EFI is a more efficient way to deliver fuel to the engine than carburetors and results in better performance, fuel economy, and emissions. However, carburetors are still popular with many Harley-Davidson riders because they offer a more traditional riding experience.