I have a 1997 Johnson 200hp Ocean Runner that always seems to die when I go to put it in reverse. It has new fuel, new plugs, and a new fuel filter. When I pull up to the dock at it dies when I put it in reverse. Sometimes it even dies when I put it in forward. Is my idle too low? What should the idle be set to? Is it a timeing problem or something else? Other than that the motor runs well and has low hours. (less than 200)