I am a newbie when it comes to boats, lawn mowers i can handle,lol. Heres my issue. After shifting my controller into reverse I could not get it back into neutral. After disconnecting my controller and shifting it back into neutral by hand, I tried again to shift from reverse back into neutral..the same thing happened, I cannot get the controller back to neutral. I now have the controller in neutral and back together, i am sure it is assembled correctly as I do have an old merc service manual. Both the shifter and throttle cables are aligned as the manual calls for, however, could this simply be a cable adjustment issue? if so how do i correctly tighten my shifter/throttle cables as i have quite a bit of play in the controller, almost all the way forward before throttle moves...Thanks