By JD I assume you mean John Deere, if not disregard what I am about to say.

If it is John Deere the 125 should be preceded by two letters ie LT 155.

Using the complete model description, ie LT155, go to the following site and you can see the cruise control assembly. and the drawings will help trouble shoot the problem.

http://jdpc.deere.com/jdpc/servlet/com.deere.u90490.partscatalog.view.servlets.HomePageServlet_Alt

I would suspect you have either the belts not properly around the pulleys, or you have not hooked up something.

If the Cruise had not worked before you took the deck off, I would suggest you make sure there is no yard debris interfering with that locking mechanism for the Cruise.

Thanks for reply. The link you provided does not exisit. Can you double check it? Yes, my tractor is John Deer 125. I suspect the cruise control lever was not in the correct position or something is too tight so that the cruise control cannot be locked while I was pushing forward pedal down. The tractor can work fine, however. Can you provide the correct link how to install and adjust the cruise control of the JD 125 tractor?

yes, there is a JD 125 lawn tractor. If online manual info cannot be had here, suggest reposting over in the weekendfreedommachines.com forum. Good luck

Here is a link that might be useful: JD 125

When the message program breaks the string a space is placed after the . after the view remove the space so is view.servlets

http://jdpc.deere.com/jdpc/servlet/com.deere.u90490.partscatalog.view. servlets.HomePageServlet_Alt

With the information above just add 125 in the model number box

This post was edited by knuttle on Wed, May 1, 13 at 13:46