Given the short lifespan of the G2 (3-260) Carburettor, does anyone have any further details on when and why the change was introduced to the Air Vane (flag) shape and what models it effected?
Parts Amendment List 2 February 1969 shows a "full" flag whereas A.L. 4 Feb 71 shows a "truncated" flag, both 3-308.
I noted in the workshop manual the advice, "If more engine speed is required, cut away the top corner of the vane as illustrated", but assume this was an interim solution until the new truncated Vane design was introduced.
I also noted the change to the Governor Spring (3-279), with the comment, "A modified spring with more positive attachment at the lower end is now available"
Were both of these design changes attempts to solve 1969 period "in the field" problems prior to the G3 introduction?