Forget the Bumper screw, that is only used if the Governor is surging, it just damps it down. You may not even need to use it and it will depend on your particular Engine. It is the very last thing you actually set after everything else is done. You cannot set the linkage like you are doing, that is completely the wrong way. These Governors require precision setting if they are to work correctly. You say that you have got every rod fully extended, why did you do that, what was the reason, was one of the rods broken or something. If it speeds up like you say, that does mean that the Governor linkage settings are wrong. You don't say what tractor/engine that you have. Avoid testing the Governor by slipping the Clutch in top gear, use 3rd gear instead or you will burn the Clutch out. I know it says use top in the manual, that is OK if you know what to expect and that you don't have to keep trying it, you wouldn't need to do all that testing if it was set correctly in the first place. If the Governor is set correctly you will be able to tell using 3rd gear without all the heat and the wear taking place.If you need the info on how to set it, email me and I will send it. John(UK)...email@example.com
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