Flywheel for Yamaha YFM 700 Grizzly 2007 2008 / YXR 700 Rhino 2008 2009 2011 2012 2013 | OEM Repl. # 3B4-81450-00-00Don't Repair. Replace like a pro! New Heavy Duty Flywheel Rotor Yamaha 700cc ATV UTV Introducing our newest Heavy Duty Flywheel Rotor For Yamaha 700cc ATV UTVs. Anyone who rides or repairs Yamaha 700cc ATV UTVs is probably familiar with the flywheel problems common to these models. Most of these machines 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