Obsolete Evinrude parts...

[konstan]

I've been working on this 1983 Evinrude 2hp (E2RCTD). It is tiny and light and I thought it was going to be perfect for my CP-16.
The main issue with it is very low compression. It runs at high rpm, stalls low to mid. Compression measured low (40s).
On visual inspection, the bore looks alright, I ordered a new headgasket, the rings cap, when inserted into the bore, is right at the far end of the spec.

I wanted to put in new rings but they apparently are no longer made.
What would you do?

As a long shot, I was looking at this: https://www.amazon.com/gp/product/B012CWAMK6 - the rings are right size and the piston pins are in the right place (just above the grooves)...

[5monkeys]

is this the right part?

https://www.ebay.com/itm/163829987527

[konstan]

Yes, yes it is? huh. I swear I looked. Thanks!!

[5monkeys]

still, the part  you found is sooo much cheaper.. I'd be tempted to try it if I were you.

[konstan]

I have never replaced rings with anything other than the exact replacement part. That is the source of my hesitation...
But I am also very excited to try

[Cats Paw]

Check out the linked Forum. I use it often. A lot of seasoned mechanics chime in to answer questions.

http://www.marineengine.com/boat-forum/forum.php