Hi I have a 1990 bayliner 2070 l drive with a 120 I'm having a shifting problem I can get the gears to work on the trailer but when I hit the water and cruise I end up losing reverse. I replaced the cable 20 years ago and I could never get it right I think the cable was to Long now from my understanding there's only 2 cables for the l drive a 13 and 14 foot cable I have a 14 please help