30 seconds is the longest it has went without reving up, sometimes it's quicker. I've tried that and nothing changes. The governor shaft going in has about 1/16th play maybe a little more going into the engine.
They are installed correct, that's the first thing I thought,I went back out there, looks line the governor spring is weak and not pulling the governor lever back
Just Replaced carb,fuel filter,plug.When starting up it will idle low for 30 seconds then rev high even in turtle mode.Triple checked linkage hooked up correctly.Looked on youtube ,chatgpt.google,etc.but nothing covers a mower that old.Thanks for any help.