Magneto Flywheel Puller Tool - Left Hand, 27mm / 24mm x 1.0mm for GY6/JOG 50cc and 150cc Magneto Flywheel Puller Tool for GY6/JOG 50cc and 150cc Made of high-quality steel construction that has an anodized black finish for long-lasting durability and performance. 24mm x 1.00 mounts for GY6 50cc 139QMB Engines 27mm x 1.00 Left Thread (Male) mounts for GY6 125cc 150cc 152QMI 152QMJ Engines