Basic overhaul kit for waxstat HS4 carburetors. Often the waxtstat style jets can fail and behave erratically causing odd mixture changes during warmup. This is a genuine SU kit which will include all needed parts and gaskets to perform a basic refresh of your carburetor. Includes jet assembly, float needle and seat, and all gaskets and seals.
 
Does not include throttleshaft components, float, needle, or jet bearing assembly.