Some food for thought on the compression loss with the 800s. Some people are saying its a lean spot within a certain RPM that is causing the rings to flake. I know of a couple of people myself who are having this problem but they are saying the rings are flaking on the exhaust side. We have come to the conclusion that it is not a lean spot but something to do with the port timing or the pipe. Basically what is happening is that withing a certain RPM the charge is forced back through the exhaust port too early which exposes the rings to eccessive amounts of heat. That is why the rings are flaking on the exhaust side. If anyone out there is into high performance outboards you may have heard of this happening on the Merc Bridgeports. This could be way off but it makes too much sense and it has happened before in other engines.