Installing the two Throttle Cables was surprisingly easy. I was getting worried thinking that I was going to have to install some cable idlers somewhere under the Turtle Deck, but that was not the case. The two cables mounted easily onto the Throttle lever then were fed up the Pylon and out to the Engine. The only problem I encountered was that the cables are a much larger diameter than the hole in the bolt on the Throttle Arm on the Carburettor. Hmmm... unravel the cable to make it smaller?... no way... drill the bolt out to a larger diameter?... I suppose so, but leave it for another day.
14 August 2021 note: finalized the throttle cable installation, by trimming the tips of the cables a bit I managed to finally force them through the very tight holes in the bolts.