I have a 1998 Yamaha 40 HP outboard motor that seems stuck in forward gear (even when in neutral). The day prior to discovering my issue, I had dropped the bottom unit and changed all the water pump components and reinstalled. Took it to the lake and the water pumps great, but I discovered the propeller is driving forward even while I have the shifter in neutral. If I shift to reverse, it still drives forward. What can I do to correct this issue? Any good help is greatly appreciated!