Improved Stronger Magneto Flywheel Rotor for Yamaha YFZ 350 Banshee 1987-2006 OEM# 3GG-85550-01-00Don't Repair. Replace like a pro! New Heavy Duty Flywheel Rotor Yamaha 350 ATVs Introducing our newest Heavy Duty Flywheel Rotor For Yamaha 350 ATVs. Anyone who rides or repairs Yamaha 350 ATVs is probably familiar with the flywheel problems common to these models. Most of these vehicles will have at least one flywheel failure in their lifetime so far. Low quality epoxy was used on OEM flywheels to secure the magnets to the rotor body. Over time and