Compression readings = how to interupt

[rcnight1]

I'm in the process of refurbing a boat with twin 2000 & 2001 ox66 200 hp Saltwater series. The 2000 has compression readings from 105 to 115. The 2001 reads 118 to 120. History, maintenance & hours unknown. Both start & run, although I have not water tested them yet. Should I be concerned about the 2000's low readings? Before I do any further maintenance, what do you think about the 2000? What if any corrective actions should I take? Thanks in advance for all suggestions.

[ausnoelm]

Forget the readings, do regular maintenance and enjoy boating, leave the compression gauge in the tool box.

[DennisG01]

You're good. Those readings are fine.

If it's going to be a while till you're ready for the engines with your boat build, it wouldn't hurt to run some fogging oil in there and turn it over a couple times. A little motor oil through the plug holes would work, too.