I have played around quite a bit today with the mower and have it running pretty well.
The only thing is it still needs a little choke to run at best. I tried the mixture screw but this wont help.
Im not sure that this problem is governor related. Seems more like a fuel problem to me.....

Give a man a fish and he will eat for a day. Give a man a fishing rod and he will sit in a boat and drink cans all day!