Carburetors Are Back?

The carburetor died on the automobile vine more than 25 years ago, but walk into any motorcycle showroom and you’ll see a few stragglers still sucking fuel the old fashioned-way: through a set of good ol’ carbies. Electronic fuel injection is known for being more precise, it has more consistent air/fuel ratios, produces less emissions, runs smoother, and makes more consistent power across a wider rev range than a carburetor. So why are modern day motorcycles sticking with this ancient tech? Do they know something we don’t know? Is the carburetor back?

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[Bryanscott]

As an engineer and mechanic, I love teaching my son who is now 5 what I enjoy! So thank you Jeremiah, and the rest of donut for making it fun for him! We enjoy it together!!

[lolotrix]

for the people wondering it literally just says: "something in german" on their new banner and as a german I absolutely love it

[lethalsparrow]

One thing I personally love about carbs is their simplicity of tuning especially for small engines. There's something to be said for the fact that a carbureted engine can be run with nothing but a magneto powering the spark plug and no other electrical system.

[ThunderHead]

As an automation engineer and programmer, I can say that the carb is still a stout unit being a harmonious blend of physics and fluid dynamics.

The carb is still king in my book all day long. Uncle luke here may or may not of designed and programmed a universal adaptive control that trims carb afr in real time - more on that later.
Thunderhead289

[tylermorrison]

I’d love to see Jeremiah host a motorcycle show

[martyatspotgoes]

I’m not that old and we used to call filling the tank with “Ethel”. Ethanol has a long history in America. Over 100 years ago, Henry Ford designed the first Model T to run on ethanol or gasoline — the original flex-fuel vehicle. He did this because gasoline was not commonly available everywhere in 1908, and farmers could produce ethanol very cheaply and use it to fuel their vehicles – essentially, you could run your Model T on moonshine. Ethanol also made a comeback as fuel during WWII when gasoline was strictly rationed.

[kulturamoto]

Jeremiah should be Donut's face for motorcycle contents. I'm a motorcycle enthusiast and it fills me with joy whenever motorcycles are mentioned in Donut.

[alexjenner]

4:53 That is what the accelerator pump on the carburettor is for. If you have to wait for more fuel with your carburettor, then maybe the accelerator pump needs adjustment or repair. Sometimes the accelerator pump diaphragm needs replacing.

[karmAq]

"Don't ask me how I know 1986 was 35 years ago."

I feel that on a spiritual level. Great video as always!

[youthful]

I watch these videos like “yeah, this will help me during my interview at Jiffy Lube”

[AWEdventures]

My 12 old carbureted snowmachine got me and my buddy home safe from deep in the woods when my fancy brand new EFI sled had an ECM failure. Just can't beat their reliability and "simplicity"!

[karlx-]

The production level of you shows is fantastic. I can see the hours spent on set design, lighting, camera work, etc. Plus the post work is fabulous! After Effects and Premiere, etc. It certainly shows.

[oification]

"Etwas auf Deutsch" 😂 Thanks to B2B team for putting together a great carburetor episode.

[cyrilthomas]

Two stroke + carburetor = pure happiness
Great upload, Donut

[deltacx]

3:44 wait, you can just add servos to the adjustment screw and with a simple microcontroller, some programming and some sensors you can adjust things on the fly.

[PalmRiverGarage]

Worth a mention would be the short lived Hitachi electronic metered feedback carburetor mostly used by Isuzu, Nissan, & Suzuki. It used a MAP, O2, and Coolant Temp sensor to regulate mixture, and also control choke operation. Some even had an in-line resistance heater coil to warm the mixture at sub freezing temps.

[brettbaratheon]

Because they are perfect and awesome. Actually, a carburetor is one of the coolest inventions ever. For how simple it is, it is so complicated and fascinating.

[mariooliva]

the channel smarter every day has a great video about how a carburetor works, and uses a simple, clear plastic carb to demonstrate. highly recommend

[ronprice]

I drive old carbureted cars all the time and the one big thing I like better about them is the throttle response. Is is immediate! All the newer cars I have driven especially ones that do not have a throttle cable have such a lag in acceleration I find them actually somewhat less manuverable trying to merge in heavy traffic. I'll keep my 40-50 year old cars.

[crungushakooter]

I'm not really a car guy but that carb visual helped me understand why my first car would shut off all the time, thanks!
It was an '84 chevy celebrity and i knew "something something choke stuck at full open" and it was constantly blowing too much air so I always needed to give it a little gas to keep the engine running, but actually seeing that makes it make much more sense to me