This is the special needle carrier that were attached to the slide on original Amal RN competition carburettors - allowing the throttle needle to be held remotely from the throttle slide. CNC machined to the original pattern
This fitting is particular to the Amal RN (Remote Needle) model, and as far as we are aware have been unavailable for many years. Ours are CNC machined from solid brass billet to the exact dimensions of the original item - including the fine slot for the needle spring clip (Item 0960) and the counterbored screw hole at the top, which allows this clip to be attached to the throttle slide.
We also include the special brass screw that was used to fit these to original slides - which should be flush fitting at the top, so they did not foul the carb top cap. Email us if you require further information on the the thread and length of this screw - and if fitting this to a new slide - carefully ensure the thread in the slide and screw are the same and a smooth fit - before fully tightening home.
Note: If you own an original Amal RN carburettor, you have probably looked at the slide and wondered how this needle carrier was held to the slide. It is important to note that it was not retained purely by the screw (which we believe to be a 5/32 x 32tpi BSW thread) - the RN slide also had the needle holder screw hole counterbored underneath, then when the barrel headed screw was fully tightened, the head of the thread was peened into the counterbore so it could not loosen and come away from vibration in use. Added to this, at least two original RN slides I have stripped have also had the brass needle holder soldered to the slide in addition to the screw (but i am not sure if this was done for all slides).
Therefore, if fitting one of these needle holders to a standard Amal TT slide - it is important to bear in mind the original method of attaching, and satisfy yourself that you have fitted the needle holder securely before use.
Note: we can supply high quality slides already fitted with these needle holders in No5 and No6 cutaways if required - Item 0961