My fourth year with this boat. Each year it has been getting more difficult to change gears. After sitting 3 months, it is now stuck in forward so I can't even get it in neutral to see if it starts so I can launch. Disconnected the cable at the motor and the shift lever now moves effortlessly. Lower unit issue? Not looking to tear it apart, but if I can't find someone to fix it quickly I might have to. I am in FL for just 2 months. Suggestions? Videos? Likely cost?