What Happens If You Hook Up A Boat Battery Backwards. Now the first three settings the slowest dont work in either forward or reverse. Anyway hooked it up right and smoke still comes from starter.

But alot of the times every electrical component will puff magic smoke and will need replacing. I was an idiot without a flash light and in the dark put the cables on backwards. Hooked it up again even though smoking and it started right up.
I connected my battery backwards and now my ski wont start.
Answer 1 of 2. I hooked up a new battery backwards and when I corrected the problem I have no speedotach combo working--no turn signals. I have a 2004 Bennington 2275RL with a 2006 115 Yamaha. You blew a fuse.
