Even lower capacity motorcycle engines are also getting hi tech technologies and features. When you give the vehicle more throttle more air is forced through the venturi tube a tube design.

Motorcycle Dilemma Carbureted Vs Fuel Injected Autoevolution
Carburetor vs fuel injection reliability. The answer to the questions is in the difference between old school carburetors and computer controlled electronic fuel injection. Fuel injection systems are becoming more popular for those wanting the best performance from their engines. Carburetors are precise but not accurate in that they cannot account for changes in air or fuel temperature or atmospheric pressure. The carburetor is currently much less expensive than the electronic fuel injection systems. Carburetor vs fuel injection engine advantage disadvantages. On the contrary carburetors cant calculate the accurate amount.
Fuel injectors are calibrated to force the same amount of fuel into each cylinder. As it can supply the required amount the engine functions at its optimum power and provides the best performance. There are two different versions of fuel injection port fuel injection and direct injection. Carburetors meter fuel into the engine by using a physic phenomenon called the vacuum venturi effect. Since the fuelair mixture in carbureted systems meet at the carburetor the mixture is less precise for each cylinder. These days motorcycle engines are getting so improved in terms of power delivery and fuel efficiency.
A fuel injection system with electronic controls provides more accurate results in terms of delivering air and fuel into the cylinders. Because of their precision most fuel injection systems also permit monitoring of each cylinders egt exhaust gas temperature. Hassan january 4 2018. Carburetors are also much simpler to install than fuel injection systems because there are no electrical components or return lines to the fuel tank. Again because fuel injection and modern electronic controls are more accurate fuel delivery can be tuned to match driver demand.