AJS & Matchless Owners Club

Hi

I'm trying to sort out the carburetter attachments on my G15CSR. I've sorted the stud dimensions but from the parts list the carbs appear to be retained by three studs and a screw, the list also details nuts, part number E3231.

Can anyone advise what this nut is? I know it's a 5/16" BSCY thread, but is it a reduced hex or some other variant? and could you advise of the location and type of the screw, (I assume it will be a 5/16" 18TPI Whit screw but what head does it have?)

Regards Mick - (Currently also struggling to part the crank cases )

They are reduced head nuts and again you are correct with the screw thread and it's an Allen socket screw.

Thanks Rob

Now sourced suitable nuts, studs and screw but it's not obvious to me where the screw should go, (maybe because I don't have any bodywork installed - I'm using a standard and chopped Monobloc with intake trumpets).

Numbering from left to right looking forward, which threaded hole is the screw located? Any idea why?

Regards Mick