I have a 9.9 HP, 2003 mercury outboard. I had a question about the throttle. When I engage my engine into gear, the throttle slips into gear with ease, but when I want to open the throttle fully, it is kind of hard, pretty stiff to move the throttle all the way down (open). I was wondering if there is a way to adjust that, so that it is easier to move the throttle to the open position, with a little more ease/smoothness? it is an electric start, center console, remote control model, it has a throttle advance-only button, a kill switch, no hydraulics, everything works on it fine, just wondering if I can make the throttle advance a little smoother? thanks for any replies....