In the Yamaha FZS-V3 bike, the low fuel indicator blinking when starting but stopping when riding is not considered normal behavior. Typically, the low fuel indicator is designed to remain illuminated or blink consistently when the fuel level in the tank is low, regardless of whether the bike is stationary or in motion.
If you are experiencing this issue, it is recommended to have your bike inspected by a qualified technician or take it to an authorized Yamaha service center. They will be able to diagnose the problem and determine if there is a fault with the low fuel indicator or any other related components. It's important to address any potential issues to ensure the accurate functioning of your bike's fuel system.