Difference Between Carburetors With and Without Accelerator Pumps
1 Answers
What exactly is a motorcycle carburetor accelerator pump? As the name suggests, it must be related to motorcycle acceleration, and in practical use, this is indeed the case. A carburetor with an accelerator pump can indeed enhance the vehicle's acceleration performance, but this is only momentary. The accelerator pump in a carburetor is actually a small manual fuel pump that operates via the throttle cable. Normally, it remains idle and only activates once when the throttle grip is rapidly twisted, so it doesn't work continuously but only under specific conditions. From the above explanation, the motorcycle's accelerator pump only works when the throttle is suddenly opened. During vehicle movement, sudden throttle opening mainly occurs during acceleration after gear shifting. At this point, a carburetor with an accelerator pump provides the engine with an extra fuel supply, generating a momentary burst of power to compensate for the speed loss due to gear shifting. Additionally, when the engine needs increased burst power, releasing and then reapplying the throttle can make the accelerator pump work again to achieve vehicle acceleration. In summary, the primary function of the carburetor accelerator pump is to enhance the engine's momentary burst power for acceleration purposes. Since a carburetor with an accelerator pump can boost the engine's instant burst power, a carburetor without one obviously lacks this capability, which is the main difference between the two.
