Tman opined

Somebody posed that seemingly simple question to me, but kept coming
back to the point that they stumped me.... And I am stumped. What do
you see wrong with the logic in this dialog?

Q: Why do I need to lean out my carb when I climb?

A: Ahem, seems you forgot your PPL ground school. The air is less
dense. Fewer air molecules per unit volume. Therefore, you need less
gas, so you lean it out!

Because the carb measures volume, and adds enough fuel for that volume. So, if
the air is less dense, there is less mass of air entering the cylinders, and too
much fuel.

To correct that, you lean the mixture.


-ash
Cthulhu in 2012!
Vote the greater evil.