Does opening the choke on a motorcycle consume more fuel?

1 Answers
VonHaley
07/30/25 5:49am
Opening the choke on a motorcycle does consume more fuel. Choke: The choke, also known as the air choke, is a unique device in carburetor-type gasoline engines that adjusts the mixture concentration to facilitate starting. Under normal circumstances, it should be kept in the open position. There are two principles of the choke: one reduces the amount of air entering, and the other increases the amount of gasoline entering. Both aim to enrich the air-fuel mixture, making it easier to start a cold engine. Chokes can be classified into two types: one is the automatic electric choke. Before starting an engine with this type of choke, pressing the throttle pedal once will automatically close the choke. Then, turning on the ignition switch makes starting easier. Since it is controlled by an electric heating wire, the choke will automatically open after a few minutes of power supply. The entire process requires no operation from the driver, hence it is called an automatic choke. The other type is the manual choke. Here, the driver manually controls a cable to directly adjust the choke's opening size to adapt to various changes in mixture concentration. Manual chokes are more intuitive, offer stable control, and require no adjustments. The driver simply feels the length of the cable pulled to regulate the mixture concentration.
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