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:shrugs: Where's the other replies? I do what I can based on the experience I have. All I can say is all my saws work, and I don't use gauges.

Your full throttle reading concerns me most. Could be lean, and giving you high results. If you can't hear 4stroking when it's out of wood, crank the high jet up; maybe a full turn. See if you can hear then. If not, turn it up some more. Still can't hear it? You may not know what to listen for...

I'd be questioning the tach. Seems to read high in both cases. Saws aren't precision instruments, but I'd expect it to be closer to spec than what you're getting. I'd check the tach against a known good gauge, maybe from a shop? You may have to buy a little shop time, but then you'll know for...