What is the purpose of the letter A on a motorcycle?

The letter A symbol accompanied by a curved arrow signifies the activation/deactivation of the Idling Stop feature on a scooter.

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For scooters, the Idling Stop is a technology equipped with the function of temporarily turning off the scooter engine when it is not in operation. For scooters equipped with this feature, when the scooter is not in operation for more than 3 seconds, this technology will be activated to temporarily turn off the engine.

The sign to recognize that Idling Stop has been activated is the letter A with an arc-shaped arrow surrounding it on the screen, which will light up until the scooter continues to operate.

This is a very useful technology for scooter users, especially for those who use scooters in crowded and congested street conditions.

When Idling Stop is turned on, the scooter’s engine will automatically turn off when the traffic light turns red. When the traffic light changes to green, just gently twist the throttle and the scooter will automatically start to continue the journey.

Fuel efficiency is the first thing mentioned about the benefits that Idling Stop brings to users.

Environmental protection is achieved by minimizing the amount of emissions as well as the noise from the engine when the Idling Stop mode is activated.

When the Idling Stop mode is activated, the scooter will enter a temporary idle state, and the engine will be smooth. When movement is required, there is no need to restart the scooter from the beginning.


The letter A symbol accompanied by an arc-shaped arrow indicates the on/off state of the Idling Stop feature on scooters. (Image: Okxe)

Usage note:

To turn on/off the Idling Stop function, you use the switch to turn on/off this function on the control panel on the right side.

The Idling Stop will be activated by the vehicle’s central processing unit (ECU) when the scooter starts up and runs for the first time, reaching a speed of over 10km/h and an engine temperature of over 50 degrees Celsius.

If we kick the side stand when the scooter is turned off by the Idling Stop or switch the button through the Idling, the function will be turned off. If you want to start the engine again, you will have to use the starter button. If the water cooling temperature is too hot (Fi light or temperature light is on), or if the scooter has an electronic fuel injection malfunction, the Idling Stop cannot be used.

Idling Stop is a technology equipped on cars and popular in new scooters. This technology is designed to reduce the amount of time the engine operates when the vehicle is idling or stopped at a red light. The goal of this technology is to reduce fuel consumption and greenhouse gas emissions by turning off the engine when not needed.

With the Idling Stop technology, when conditions permit (for example, when the scooter is stationary and there is no need to continue moving), the engine will automatically shut off and then restart when the rider twists the throttle or has any other movement request.

According to VTC news

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