Feels like throttle control shifter is bound up. The the boat was going fine and when I tried to slow down it only went down to 51/2 kph. Would go fast fine. Then controls came back temporarily. Then only had down to 5 1/2 kph again as I was docking. It went into reverse but very hard. Doesn't seem to be able to find Nuetral. I checked the cables and the control itself and I don't think it was either. What is going on inside the motor?