I recently tore my truck apart down to the chassis to clean it and the other day I went to drive my truck after finally finishing the rebuild and to me it looks like the throttle servo is pulling to far and making the little spindle that does to the carb ball ( I dont know what it is called ) is getting pulled to far and is getting stuck and will not go back to the idle position unless i push it with my finger, and then it will pop back into position. What do I need to do to the linkage to make it not pull so far? The only thing that I have gotten to work is messing with the brake linkage as well and the only way it wont pull to far is when there is full brake applied without touching the controller... What do I need to do to fix this? Please help! All help is wonderful!

Thanks