Hi all, good news I freed the decomp valve ok and the mowers starts first time. I still think the governor is not quite correct as the thing will idle perfectly, but when the throttle is opened to accelerate the engine runs really hard, there does not seem to be any happy medium. Most anxious to try to find a diagram of the governor set up for this model. In my previous photo it looks to me like the governor flag is too far away from the flywheel to have any real benefit. Uneducated guess only. I will Google to try to find answers, but if anyone can come up with an original setup picture that would be great. Cheers, and Happy New Year.