Oooh yeah, gotta love gear oil! Great on a first date from what I remember!
Haven't come across anything that new yet, but I've seen some without any needle at all! Whatever setting it had at the factory was cast in place, I guess. Those get the drill ... but that's always a gamble. And yeah, every single piece of equipment I have ever worked on needed more fuel before it leaves my garage. The EPA don't care if you melt the piston!
I remember the Honda carb cleaner ... back when it was actually GOOD, and actually CLEANED the damn carbs ... with methylene chloride. Let me tell you ... get that *censored* in your eyes & you'll be rinsing it out with mace to dull the pain!
Then you can't see for the rest of the day - but that trained me to wear safety glasses. Stuff used to instantly strip paint too, until it succumbed to tree-hugger mania along with everything else.