Best thing to do is take it to a reputable dealer/service center. They can offer assistance and have the tools/equipment to perform service safely. I too have cable on my 96 Eyra, and while I would like to try hydraulic, at this point on a boat of that age, you will get a good amount of years going to new cables/lubrication compared to $$$ for hydraulic on that age boat.96 Eyra/12 Mercury 175 Pro XS with 2015 single axle trailer2017 Victory Gunner