I have a new horse that gets really fast when jumping! He hasnt jumped in a couple years. I bought him and im starting to jump him. After a jump he gets to fast and takes off and I can't bring him down! What should I do?
He's taking advantage of you and running through your aids. You'll need to ride him and not just be a passenger. Ditch the jumps until he understands stop. Ride him at all gaits and throw in halts or downward transitions every 10 strides or so. Make sure you get a response when asking for a downshift. Use as much force as necessary, but as little force as possible. At first, when he offers even a hint of compliance, reward him. After you know that he knows what you're asking for, make sure you get total compliance every time you ask.
Once you've got it working on the flat, move up to ground poles and do the downward transitions after the poles. Only then should you move back up to jumps. He should be able to stop on a dime only strides after a jump, not rushing off at his own speed. Good luck.
Maybe try Lounging over jumps and tell him or her easy. You want them to know that you are in control. I have a horse that started out the some way and it took me 2 months to get him to understand that he needs to slow down. Or maybe you can try halk halting over the jumps. I would not stop him after a jump becaus ethat is only teaching him that it is ok to stop after a jump and it is not teaching him to slow down. Trust me I have gone throughit all!!
I think you need to go back to the basics of riding with him. If you are jumping a horse that is using their hind properly, as they would in Dressage, then you wouldn't have an issue of bringing the horse back after a jump.
I can almost guarantee that he is on his forehand, and that is how he is able to run right through your aids.
Make sure he is solid at flatwork before taking him over a jump. Make sure he is soft, supple, and responsive to your aids. Then worry about jumping.