Hello to all fellow boaters. I just got my first fast Electric its a Black Jack 29. With a leopard 2100 kv. And a 120 esc. On its first run yesterday went ok for first 2 mins then motor started juddering . And now all it is doing is beeping constantly. Reciver is good.. batterys all charged. Can anyone help as im not sure what else to check. I have tried to rebind it . But still the same. Steering servo not working. Thanks for any replys ..