I have a bumble bee bass boat with a mercury 70 horse power motor on it, the steering is very tight and i was wondering if anyone could tell me how to either loosen it up some or where to buy a new cable and how to change it out. The cable that is on the boat is 2 to 3 years old we bought it new and had it installed by a boat repair person, it was hard to steer from the start. any hrlp greatly appreciated.