I used the 'advance throttle only' mode to start my engine on my '01 nitro. It started very easily and we cruised with ease to our spot. When we decided to change spots, we started the engine without problem but when we shifted out of idle the prop would not engage. The prop will not engage at all now. It seems that i can turn the engine over even with the throttle foward now. It should not be like this unless using the advance throttle mode. I believe it is stuck in this mode and that it is stuck in idle. Help please?!