What are the symptoms of a faulty scooter pulley weight?

[AlanDella]

Symptoms of faulty pulley weights in a scooter include sluggish acceleration, delayed speed increase, and abnormal rear wheel vibrations/noises. Relevant information about pulley weights is as follows: 1. Function: Pulley weights (also called movable weights) are rotating components in scooters. As engine RPM increases, centrifugal force pushes the weights outward against the main spring tension, causing them to slide radially along grooves toward the outer edge of the pulley. This increases the axial force on the movable pulley, enlarges the working radius, reduces the driven pulley diameter, and alters the gear ratio. 2. Weight differences: Lighter pulley weights experience less centrifugal force, while heavier ones generate greater centrifugal force.