The float on mine is not adjustable, its plastic, anyway, on a whim I went to the local steel retail today, found a O ring and installed it and my problems were solved....
I found this thread that has a parts list, but not an exploded view of the carby....
https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=showflat&Number=23451
