Scooters can make a range of sounds as they are operated. The rear drive portion of the scooter, usually referred to as the drive train or "transaxle", contains the motor, gearbox and magnetic braking mechanism. The drive train, in particular can make sounds ranging from whining, whirring, clunking, ticking, clicking, humming, etc.
Scooter manufacturers tell us that sounds can even vary from scooter to scooter even when the models are identical. Sounds can range from a whining, whirring, clunking, clicking, humming, etc.
Sounds can change as time passes and can be more pronounced if the rider/cargo weight is approaching the maximum weight capacity of the scooter.
All of these sounds are normal and if the scooter is operating properly in all other regards, nothing need or can be done to change the sound. Sounds your scooter make or changes to the sounds are NOT indicators of a defect, failure or coming failure. Neither the manufacturer's warranty nor Living Well Stores scooter warranty covers sounds that may come from a scooter during operation.