The component with the lowest price in the CARBURETOR schematic is the Ybs67-4 Washer, Spring.
A sample from the products for the Carburetor include: Washer, Spring, Valve, Throttle 1, Needle Set (primary), Jet, Main (# 120).
The Carburetor is made up of components including this Carburetor Assy 1 which is the most expensive.