Too many variables here to make any kind of accurate input. However I’d say just run it and see how it feels. If it feels like you’re underpowered use good quality compression gauge, or even better a couple and average them.
Going just from your first numbers it’s a bit low, BUT if you weren’t wot, and your battery was a bit low you’d see this too. Not to mention the accuracy of cheap gauges. The internals look great, but could still be slack. The walls do wear from the rings and are designed to. If this is the case send them off to be refinished or resleeved and then use the correct size pistons and rings afterwards. Sad bit is, if it’s this clean and just worn, chances are you’re at crank rebuild territory too, as it’s no doubt got plenty of well maintained hours on, these again do wear and will leak air, causing all kinds of tuning issues further down the road.
It’s Christmas and cold, and these engines are tiny. If it were me, I’d pull it out, strip it down and rebuild it from the info on this forum. You’ll get far more knowledge from your machine, and it’s a nice way to pass a few winter nights.
Only bits I couldn’t do was obv the crank rebuild and the sleeve re-cutting. Everything else is really easy to do on these engines and they’re bulletproof if looked after.
