This is a Hi-Caliber Powersports Parts carburetor rebuild kit with precision machined components for the 2000-2012 Yamaha YFM 400 Big Bear ATV. 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 provided. This carb kit comes complete with a free G&H Discount ATV Supply and Hi-Caliber Powersports Parts decal.