I recently purchased an '58 35 hp Lark, and I had it out on the water and it worked great the first time. The second time, not so much. I had to jumpstart the boat, and it started fine after that. There was a bad battery and it was replaced. After replacing it, I went to start it, and the starter will only engage sometimes, and there is smoke coming from the battery terminals. I'm not sure where to go from here. Any thoughts?