Trying again to post a little update as a test really.
Re-did a ’62 40hp Lark over winter and had it out on the lake for a couple of hours recently.
Really impressed with the smooth and quiet running of the engine, A big step up from the RD’s I’ve been running for years.

Upon post-cruise inspection I noticed a little evidence of oil under the flywheel and suspected the usual culprit of a worn top seal. During the “refresh” I had put some light oil around the seal-to-crank interface, cranked it over and all looked good.

Re-popped the flywheel for a look-see and found the possible source of the oil…..The oil drain line was hard and loose on the upper nipple, so swapped it out for some fresh 1/8 thick walled fuel line.

I think this step will become part of routine!

Haven’t had a chance to get the boat out for a real test run, but all looked good after a brief stint on the “muffs”, so here’s hoping.

Will also try to submit a pic.