2004 Yamaha Grizzly 660 Auto 4x4, The Grizzly from Yamaha has proven to be one of the toughest ATVs on the market. It's versatile design makes it great for both work and play. Call Freedom Powersports today at 940-627-0627 for more details! The Grizzly from Yamaha has proven to be one of the toughest ATVs on the market. It's versatile design makes it great for both work and play. Call Freedom Powersports today at 940-627-0627 for more details!