Originally Posted by nrhareiner
Get a pro trainer who is accustom to working with horses like this. Like Keven said. Unless you can ride it out you will only end up getting hurt. There are trainers who specialize in training horses who buck. They are very good riders and can ride it out.
I will ask though. Have you check back problems saddle fit and such??? This could also be a problem.
Agreed - start with making CERTAIN the saddle and her teeth are not hurting her.
Then if you still want to take the chance start her as if she was a baby and has never had ANYONE on her back - lunging W/T/C with a bridle both ways, ground drive her, mount/dismount - but treat her as if she has a short attention span - just like a baby.
If she was started (correctly?) as a 2 yo she shouldn't be this bad UNLESS she has pain from the saddle/bit and/or she had a traumatic experience when she was 2.