When I got the motor it needed a new impeller. That was easy. Cleaned the carb and it runs better than ever. Only problem is the neutral. When I shift it into the neutral position it still slightly catches the forward gears ( which really sucks when I pull the rope and start the motor. I have tried 5 times to pull the lower unit off, adjust where the shafts connect and it always is the same outcome. Please lend me some advice or tips.