This is a Hi-Caliber Powersports Parts carburetor rebuild kit with precision machined components for the 2007-2014 Yamaha YFM 450 Grizzly and the 2007-2010 Yamaha YFM 450 Wolverine ATVs. Rebuild your carburetor right the first time with this kit and get your old atc screaming again. The kit includes all gaskets, o-rings, springs, main jet, slow jet, float needle etc for a complete carburetor rebuild as shown in the photos. Your order will come complete with a free G&H Discount ATV Supply and Hi-Caliber Powersports Parts decal.