As some of you know, I have a Avon searider 4m. It had a 45 hp honda 4 stroke on it. I am thinking of getting a Yamaha 55hp 2 stroke to put on it. The only problems I can see are 1. The holes on the transom. If I have to drill new holes how do I plug the old ones? Is there any chance that I can reuse the old holes? and 2. How will the steering shaft mate up? Will I have to buy a new shaft or are these things pretty generic?