Truly amazing video. Got questions about how these devices work? This will answer many basic (and complex) theories about carburization. Worth a watch…
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This forum is entirely dedicated to wasting time and money modifying a slow motorcycle. - joel
Nothing like a project to keep you busy, slowly draining funds out of the wallet! - spacetiger
Our Hawks have all the power any mature, sensible rider can use on any street or highway without carrying around excessively unnecessary big-bore weight and power - squirrelman
Bike builds can be and most time are art and expression. To take something mass produced and impersonal and make something personal that you can't stop staring at as you walk away. There is nothing I find more satisfying than looking at something cool and beautiful and thinking "I made that". - 6 -
Great video, thanks! I was not familiar with the throttle part of the equation.Brian - Richland, WA
1991 Hawk GT
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It is overly simple.
A real main jet also mixes with air beforehand to improve atomization. That's what all those little holes are for.
There are no other circuits. In this model.
A venturi is NOT a rocket nozzle.
Fuel isn't sucked into the stream. It's actually pushed by ambient air pressure.
The function of the choke is to drastically increases the 'sucking effect' of the intake stroke: not really to throttle air. Measure vacuum: low with WOT, high with closed throttle.
Like everything that's dumbed down: dumbed down too much now it's too dumb to really explain what it is trying to explain.
If you were looking for a support group you're barking up the wrong tree. This place is fulla enablers dude. - Shooter77us
The bitterness of low quality lingers long after the thrill of a low price has gone. - RacerX450Comment
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Whether something is pushed through or sucked out is kind of academic. When you suck on a straw, you don't say the ambient air pressure is forcing the soda into your mouth.Brian - Richland, WA
1991 Hawk GT
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The high speed footage was absolutely awesome. Even if it isn't a perfect example of a real-life carb.Comment
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How a carb really works is academic. And having a wishy-washy understanding of it is what leads to nit understanding how it actually works.
Like how most of the carbs "vents" are inlets to the atmosphere that let 'pushing' air in.
Carbs work on a difference of pressure on both sides of any one thing.
If you were looking for a support group you're barking up the wrong tree. This place is fulla enablers dude. - Shooter77us
The bitterness of low quality lingers long after the thrill of a low price has gone. - RacerX450Comment
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I was under the impression that, aside from atmospheric pressure, the air is "drawn in" from the negative pressure behind the exhaust pulses.
This is a cool video, regardless. I am a fan of that YouTube channel; the video he did on "dancing water droplets" is thought provoking.Comment
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When I was young, a school teacher put a drinking straw in water and blew across the end of the straw, and we were all amazed that the water was drawn up the straw.
That experiment was as applicable to a motorcycle carburetor function as that video is.
Whether the fuel is pushed or pulled is actually important by the time you get to trying to TUNE a carb.
He didn't even mention Bernoulli. ROOKIE!Comment
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Get me some beers and some tacos, I can display a lot of things that fluids/gases can do
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all serious european race and sports cars in the late 50s, the 60s and 70s used Weber carbs, easily and quickly adjustable. their DCOE was the best racing carb ever. main jets, idle jets, air correctors and emulsion tubes can be changed in about 2 minutes under the brass thumbscrew cover. slipping in a different venturi size takes about 3 minutes.
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i bought these 2 in january from a local CL ad at about 1/3 of their market value, and i'm in the process of rebuilding them for sale.Last edited by squirrelman; 07-02-2021, 07:53 PM."It's only getting worse."
MY rides: '97 VFR750, '90 Red Hawk, '88 Blue/Black Hawk, '86 RWB VFR700 (3), '86 Yamaha Radian, '90 VTR250, '89 VTR250 (2), '73 CB125, '66 Yamaha YL-1
Sold: '86 FJ1200, '92 ZX-7, '90 Radian, '73 CB750, '89 all-white Hawk, '88 blue Hawk, '86 FZ600, '86 Yam Fazer 700 , '89 VTR250, '87 VFR700F2, '86 VFR700F.Comment
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Yeah.I bet...making BudMud and Monkeypiss mostly?. My fridge was the BEST..like a Winchester....never stopped shooting... My fridge.jpg
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Fridge was discovered by the wife.....6/29/2009
Thought about it....Chose to stay married. critters_cazarrecompensas.jpg
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Fridge was discovered by the wife.....6/29/2009 Thought about it....Chose to stay married. critters_cazarrecompensas.jpg
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I have my father's R.Polytechnic Term paper on Fluid Dynamics.
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