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Complete genuine SU master overhaul kit for single HS4 carburetors with plain discs and waxstat style jets. Often the waxtstat style jets can fail and behave erratically causing odd mixture changes during warmup. This kit includes everything you will typically need to overhaul the carburetor. Includes jet assembly, needle and seat, throttleshaft, disc, fasteners, throttleshaft bushes, and all gaskets and seals.


Does not include float, needle, or jet bearing assembly.

Carburetor Master Kit - HS4 Waxstat Jet (Plain Disc)


All HS4 carburetors w/ waxstat jets.

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