OutdoorKing Repair Forum Forums Collectors Corner Identification of Particular Machines Early Mayfair ?

G'day all,
Yep; the advance Tech Bulletin for the introduction came out in May 1975. https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=showflat&Number=38908

wce, the only possible function I can think of for the 'letter box slot' is that of a 'boost air' intake, to improve catching efficiency. It might also tend to reduce adhesion of clippings to the underside of the chassis.

Err, well yeah maybe. The sticking point is finding a G2 body that doesn't have flogged out governor vane and butterfly shaft bores. Fully complete G2's aren't exactly thick on the ground, either.

While boring/rebushing is likely technically feasible, that'd require a very high skill level, and a decent machine shop setup.

There was good reason the G3 came out when it did and remained as long as it did. The plastic carby that became the G4 was probably already planned when the G3 came out.