Set of 4 - K&L Keyster Keihin Float Needle Valves Assembly - Honda XL250 CB350/400/500/550

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Set of 4 Keyster Float needle valve assembly, for Keihin carburetors. Made in Japan. Comes complete with o-ring, needle valve seat and the needle. Don't forget to reset the float height after installing the new float needle valve assembly. One of the usual culprits of a leaky carburetor is a worn out float needle valve and the o-ring is usually flat so it can no longer make a proper seal.

Distributed By K&L. Part Number: 18-4762

Replaces Honda Part number: 16011-329-004

Fits Honda:

XL250K - 1972-1975
CB350F - 1972-1974
CB400F Super Sport -  1975-1977
CB500K - 1971-1973
CB550K - 1974-1976
CB550F Super Sport - 1975-1977

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  • 5
    K&L Keyster Keihin needle & seats

    Posted by Lee Bisnaw on 23rd Jul 2026

    Delivered in a timely manner, fit & worked as designed. Very happy with the product & 4 into 1. Would definitely deal with them again