Ty, you can get a whole series of workshop manuals for the Lawnboy (Iron Horse) engines here:
https://lookup3.toro.com/ttcGateway/acrobat/manuals/lball.htmlFYI, that source is referenced in an Outdoorking thread on the (older) D series Iron Horse:
https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=showflat&Number=19752Having a fast-slow switch on the engine itself was a feature of the D series engine that is the subject of that thread.
