In a gravity fed fuel system, where is the fuel reservoir located?

In a gravity-fed fuel system, the fuel reservoir needs to be positioned higher than the carburetor to facilitate the natural flow of fuel via gravity. This design relies on gravitational force to allow fuel to stream down to the carburetor, which then mixes the fuel with air before it enters the engine for combustion. By placing the fuel reservoir above the carburetor, it ensures adequate pressure and a steady supply of fuel, which is essential for proper engine operation.

If the reservoir were located lower than the carburetor, or at the same height, the fuel would struggle to flow downward effectively, leading to issues such as fuel starvation, inconsistent engine performance, or starting difficulties. Therefore, the optimal configuration in a gravity-fed system is to have the fuel reservoir positioned higher than the carburetor. This ensures an efficient and reliable fuel delivery system.