We'd just had a previous thread on his newly-aquired SB45, complete with Kirby-Lauson. He'd restored the mower in that thread, and at the end of it he decided to write up the work he'd done on the engine. Here is that other thread:
https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=showflat&Number=37551&page=1
