Thanks again all...
Think I found the cause of my sputtering.. There was a loos-ish wire between the oil pressure switch and the fuel pump. Re-crimped that, and seems to be running smooth now. Although only a short test, will need to do a longer sea trial until I fully declare vicory on that ;-)
Did a compression test.. Had 100, 90, 90 and 60 psi. Re-ran the test on the 60 psi cylinder after putting some oil in it per suggestion on another thread here, and it bumped up to 110 psi.
So I guess the rings and/or valve guides are worn as suspected. I will order / install the crankcase vent kit and investigate additives to help the old-girl along here in her golden years or until I break down and have the engine rebuilt or replaced...
Cheers
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