Hi Joe, it's good to hear from you again.
There doesn't seem to be much information around regarding Kirby Lauson engines - the Tecumseh overhaul manuals for the original Lausons are not bad but cover a whole lot of models in one volume, so you have to work pretty hard to sort out what is specific to the ones Kirby assembled in Australia. There is an old Gregory manual that covers the Kirby specifically, and it is useful, but not very detailed in a number of areas.
I hope you are well, and will find the time to drop in as often as you can. Your knowledge is irreplaceable - I wish I knew as much about these engines as you do.
