Reading and hearing are different than doing ... that's why you take it out, make adjustments and put it back. Granted I don't have a gauge, but it's the same for the low level light and I seem to have adjusted mine just fine. And that was after the dealer got it halfway there by them doing it first, so the dealer will take a stab at it as well.
I did say it was a pain, but the adjustment itself is simply bending a float rod and trying it again. Unscrewing all the bolts, reinstalling the bolts, filling with fuel etc. is the pain part.
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