Amal Concentric 4-Stroke "Update" Conversion Kit (1) - 622/235 Mounting Made in England to the

Made in England to the Highest Specifications

*****We recommend checking your parts catalog to ensure the best and proper fitment

This is Exactly like the Original Types BSA use to provide during the Mid-1960's

(outer diameter) of the threads to help determine what spigot you need

For those looking for the "correct" 31563 Lucas switch we recommend choosing the English made 31563 "screw-on" switch or the EMGO 31563 "screw-on" switch

Amal Concentric 4-Stroke "Update" Conversion Kit (1) - 622/235 Mounting Made in England to theNew English Made Genuine Amal Concentric 4 Stroke Conversion Kit. When Rebuilding Tuning your Carburetor, only use Genuine Amal Parts! If your wondering what this kit is please read the following!: In 1969, Amal designed . 106 Needle Jet, Needle Jet holder and Needle, designed specifically for 4 stroke Carburetors which was introduced to improve low to mid range performance! Basically, we call this kit an "Upgrade" if you happen to have the incorrect,