Re: High RPM range for a 1989 200 evinrude
My 1990 200 hp runs at 5800. I don't have the book in front of me, but I believe the wide open spec. is 5400 - 5800.
Has it always run at that RPM or did it ever run higher?
Have you checked the compression?
Have you checked to make sure all 6 cylinders are firing and that all 6 plugs look good? If it used to run at ~5800 and is now ~4800, it could indicate one cylinder not firing for one reason or another. The absolute easiest scenario is that one cylinder is not firing and the cause is a fouled plug. That's the first thing I'd check.
Of course there could be other reasons, but that's about all I have experience and knowledge of.
