[bigshelly478]

I have a Tecumseh OH 160 on a Bolens H16xl. I am currently having trouble with the governor. When I have the engine running and turn on the pto for mower deck the rpms drop very low and I have to use the throttle to bring them back up. When I turn off the pto it revs way to high and I again have to turn down the throttle. If I am going up a hill I have to turn up the throttle. So the governor is not governing. I set the governor according to the instructions of the Tecumseh Technicians Handbook. All of the throttle hook-ups are in the correct hole. Let me know if any of you guys have experienced this or if you have any ideas. I really would rather not take the crank case off to look inside.
-Ben

 

[Sammoore13bolens1053]

I have a Tecumseh OH 160 on a Bolens H16xl. I am currently having trouble with the governor. When I have the engine running and turn on the pto for mower deck the rpms drop very low and I have to use the throttle to bring them back up. When I turn off the pto it revs way to high and I again have to turn down the throttle. If I am going up a hill I have to turn up the throttle. So the governor is not governing. I set the governor according to the instructions of the Tecumseh Technicians Handbook. All of the throttle hook-ups are in the correct hole. Let me know if any of you guys have experienced this or if you have any ideas. I really would rather not take the crank case off to look inside.
-Ben

Is that not normal? Engine going under load, so increase the revs?

 

[EricFromPa]

The governor either needs reset or there is something broken in the engine. The most Common failure internally on a tecumseh is the arm breaking off of the governor shaft.

Here download this manual. https://gardentractortalk.com/forums/files/file/1586-tecumseh-cast-iron-8-to-18hp-engine-manual/

Pages 18-20 covers governor adjustments.