Thanks for that, turns out the missing part from the carburetor to the governor arm that I thought was a spring is a rod. Really surprised at how well the motor runs for its age, smooth idle and acceleration. The only first hand experience I have had with a reel mower was the Atco. This thing has enough power to cut the grass of at the roots.
Could not have done it without you Jack, and Bonner Bloke. Thanks again