Discover the unparalleled effectiveness of our Sturdy Dual-Head Stator Puller, designed specifically for GY6 50/125/150cc engines. Sturdy Dual-Head Stator Puller for GY6 50/125/150cc. Dual Head Sizes: Equipped with a 24mm/0.94in side thread for most GY6 50 4-stroke scooters, mopeds, and ATVs; and a 27mm/1.06in side thread for GY6 125 150cc scooters and other 125cc motorcycles.