I recently purchased a 16 foot boat with this engine. The engine starts, idles and runs well, except... at lower rpms, the "pee hole" or tattle tale stream turns into steam, literally puffing out steam. The few times I have started and then just idled the boat along, I've seen no water, then only steam, until I increase the RPMs greatly, at which time a stream of water appears and will remain until RPMs are decreased to trolling speed. I've read posts, and it seems like an impeller kit may be in order. If so, my greatest concern is correctly removing and reinstalling the lower unit. I'm not an automotive mechanic, but I've successfully worked on a variety of machinery and am willing to give this a try. All suggestions are welcome, including ways to better troubleshoot the problem before digging in... Thanks!
