How does a Carburetor work?

Excellent!

Thanks for posting, Ryan.

Wow!!  That's fantastic!  Thanks, Ryan.

After reading the Dellorto book three times in order to wrap my head around figuring out the flat spot in my Moto Guzzi carbs, it finally dawned on me:

Carburetors Suck

Fuel Injection blows.

Given the four circuits, and all the variables that have to come together to make them work properly, altitude, barometric pressure, specific gravity of the fuel you’re using, fuel pressure, etc. it’s amazing they work at all.

Loved that Ryan! Thanks for sharing!!

You hear so much about float bowl height. It makes sense, given how the entire idle circuit is based on the weight of the gasoline in the float bowl and its Bernoulli effect on the idle jet.

Great video, @Ryan (formerly) in NorCal!

Did anyone at one minute into the video the son acknowledges the father's question replying with........ "Yes Sir" that folks is truly a decent young man.

I caught that as well.

I am fortunate that my sons usually do the same, but I have never asked them to. More importantly, they have adopted the southern tradition of addressing everyone they meet who has any years on them in the same way.

I credit their mother.  I love that woman.

@dlearl476 posted:

it’s amazing they work at all.

I think that's what I find so cool about the ICE and all of the various componentry.

It's a miracle the things even run - let alone that they will propel a vehicle down the road with verve and vigor. I think it's unimaginably cool.

"It's a miracle the things even run - let alone that they will propel a vehicle down the road with verve and vigor."  Along with smoothness and reliability for over a hundred thousand miles.

Even if you knew the basics, the video is great.  What fascinates me is the brain power to have figured it out and all the many jets of some of the 'modern' carbs.  Very cool

I have a friend who in the 70’s. holds a patent on running a 70 Dodge 100 miles on less than a gallon of gas, essentially it’s a pre-vaporized vapour box of gaz and a throttle.

I'm still trying to figure out the Thermos bottle.

You put hot stuff in and it stays hot.

You put cold stuff on and it stays cold.

How do it know?

@IaM-Ray posted:

I have a friend who in the 70’s. holds a patent on running a 70 Dodge 100 miles on less than a gallon of gas, essentially it’s a pre-vaporized vapour box of gaz and a throttle.

had the same 70 engine slant six 225...great on gas

It was a Dodge Polara V8

.

Great find, Bryan.

Now, I want to see a six-month timelapse - with ethanol in the carb.

.

That was fun.  Thanks Ryan!

@msjulie posted:

Even if you knew the basics, the video is great.  What fascinates me is the brain power to have figured it out and all the many jets of some of the 'modern' carbs.  Very cool

I don’t know if it’s more amazing, or less, but an SU carburetor works without any of that complicated stuff. It’s all done with a diagram, a needle, and a seat. All the adjustments are done via piston cutout and needle length and taper.

MC Dells don’t even have a diaphragm.

@Jim Gilbert - Madison, Mississippi posted:

I'm still trying to figure out the Thermos bottle.

You put hot stuff in and it stays hot.

You put cold stuff on and it stays cold.

How do it know?

It's all mirrors, without the smoke...

This guy does some amazing vids.

Hey thanks Ryan, I might have learned something today!

Thanks for sharing this!
I learned so much!