Tractor Repair: Kubota BX2200 Tractor Throttle, throttle lever, friction

Question
The throttle lever won't stay where I set it when the tractor is running.  The tractor runs fine at all speeds, but I have to hold the throttle lever to keep the speed up.  Otherwise, it returns back to idle.  Can you help please?

Answer
Right under the handle is two springs and two nuts. You are going to have to take off some covers to access this but it shouldn't be too big of a deal. You are going to have to tighten up the nuts this will give you more friction on the handle keeping it in place. If the handle gets to hard to move then loosen the nuts a bit. Just remember if you can't find this it is  apart of the handle on the very bottom. Hope this helps