RDLN Performance CVT Variator & Roller Tuning Kit | GY6 covers this coil is the primary

this coil is the primary suspect

Smooth Roller Transitions: Coated tracks eliminate flat spots on roller weights

Interceptor 150

or a slapping sound from the CVT cover

Protect your motorcycle’s delicate electrical system with this Genuine OEM Voltage Regulator

RDLN Performance CVT Variator & Roller Tuning Kit | GY6 covers this coil is the primarySqueeze more performance out of your GY6 powered scooter, ATV, or go kart with the RDLN Racing Variator with Roller Tuning Kit. Complete drive pulley assembly with three sets of roller weights (12g, 13g, 14g) so you can dial in the perfect balance of acceleration and top speed. Modified ramp plate raises maximum power output. Copper core, wear resistant nylon rollers outlast standard OEM weights. Kit includes: Complete drive pulley variator assembly