We used it for the first time today and everything works fine except just have no brakes. The servo will notpush under a load to make it brake. I pulled the screw off and tried it without the piece that pushes the brake and pulls the throttle and it goes back and forth just fine. But under a load of the brake it stops and doesnt push on the brakes. you can push it more with your hand just fine and it will apply the breaks. I tried another set of batteries and still the same issue. I think the servo is broken. let me know what i can do. thanks

I got it figured out.  It was rust on the gas rod not allowing it to move smoothly.  would get stuck not allowing the servo  to push on the brakes.  all good now.  </p>

Good thing you got it figured out. I had brake problems for three weeks, ordered parts, tried bigger servos, you name it could not fix it. it turned out that the cams were in backwards from the factory. You can check out the thread... Himoto Brake Upgrade.....