assuming both sponsons are there,,,and that you do not have OPAS steering paddles,,,lol...
Remove the steering cable at the venturi,,,make sure it is threaded all the way in,,then you you can tighten the hex jam nut,,,now if you need to align the venturi you must do it under the steering,,,or you may have to just tighten the 15 mm nylock nut at the steering arm