We got a Raptor 80 for my 7 year old. She is starting to learn it and use the gears. We took out the air restrictor plate and screwed out the throttle. It will be good for years. The 50 on the other hand is totally different. I screwed out the throttle and it was still pretty slow. So I went to pull out the air restrictor plate and to my horror there wasn't one. I'm guessing the top speed to be less than 20. The boy is 4 years old, so didn't expect much, but this sucks. Is there something I'm not doing?