Today we're going to talk a little bit about outboard engine maintenance. We will present some easy-to-follow tips that will ensure proper operation in the long run. We have already talked about the impeller and the importance of proper outboard engine cooling, but we feel the need to highlight the issue a little more. All manufacturers insist that the impeller be changed at least every 100 hours or once a year. This rotor wears out, breaks, dulls, and loses its elasticity—factors that...