Don't know why I didn't bring this up before, but I would go on bassboatcentral.com
If you are not a member, you need to be. Just like this board they have a lot of people on there from across the country. Many of them are Master Techs and they have a specific page specifically for mechanical issues on certain motors etc. Those guys on there can probably isolate it and tell you how to fix it in about 2 minutes. (These guys are good) !!
Good Luck