FWIW I went out and test started mine ahead of a big snow that we're expecting. I have the Koehler CH-750 in mine. Kinda cantankerous to start when subzero cold, but is was a fairly balmy 25F out. Got it started OK then just kinda seemed to run poorly. Fiddled with levers, ran the hydraulic around, nothing seemed to help. Then I noticed that I had mentally reversed which lever was the choke and which was the throttle like a doofus...
All good after that! So I think the PTSC secret handshake should involve knowing which lever is which.