Carburettor
A carburettor is a mechanical device that mixes air and fuel in the correct ratio before delivery to the engine. Before electronic fuel injection became mainstream, all motorcycle engines used carburettors.Carburettors rely on the Venturi effect: air flowing t...
What does Carburettor mean?
A carburettor is a mechanical device that mixes air and fuel in the correct ratio before delivery to the engine. Before electronic fuel injection became mainstream, all motorcycle engines used carburettors.
Carburettors rely on the Venturi effect: air flowing through a narrowed passage creates a low-pressure zone that draws fuel from a float bowl. The throttle slide controls airflow, and various jets and needles calibrate the fuel-air mixture at different throttle positions. While carburettors are mechanically simple and can be rebuilt cheaply, they are sensitive to altitude and temperature changes and require periodic cleaning and jetting adjustments.
How riders should use this term
Motorcycle terms are most useful when they help you understand real riding behavior. When you see Carburettor on a spec page, treat it as one part of the full motorcycle package, not as a number or feature to judge alone.
- Compare the term against the motorcycle category and intended use.
- Check related specs such as weight, engine size, seat height, braking system and suspension.
- Use the comparison tool if two bikes look similar on paper.
Carburettor questions
What does Carburettor mean on a motorcycle?
A carburettor is a mechanical device that mixes air and fuel in the correct ratio before delivery to the engine. Before electronic fuel injection became mainstream, all motorcycle engines used carburettors.Carburettors rely on the Venturi effect: air flowing through a narrowed passage creates a low-pressure zone that draws fuel from a float bowl. The throttle slide controls airflow, and various jets and needles calibrate the fuel-air mixture at different throttle positions. While carburettors are mechanically simple and can be rebuilt cheaply, they are sensitive to altitude and temperature changes and require periodic cleaning and jetting adjustments.
Why is Carburettor important when comparing motorcycles?
It helps riders understand how a motorcycle may feel, perform or behave in real use. The exact importance depends on the bike category and the rider's purpose.
Where can I compare motorcycles that use this term?
Use the MotoLibrary specs database, advanced filter and comparison tool to see how this term appears across different motorcycles.