When I purchased ‘Mia Noi’ she came with an 8HP two-stroke outboard. She started – was a little smokey and would do the job. But, for safety reasons and personal reassurance I purchased an new four-stroke Nissan 8HP outboard. It’s a good fit for my Catalina and I wanted to make sure I had a best friend out on the water if the weather turned un-friendly! The transom was reinforced with a plastic plate to assist in accommodating the 90 pound outboard, I also purchased a new bracket for the engine.