Pegaso carbs? NVFRC

John Alexander wrote:
> Oddly, it's a single cylinder motor with two carbs.

Odd indeed.
What purpose do two carbs serve on a thumper?
One for each intake doesn't seem to make much sense
but I can't picture any other combination.

Can anyone enlighten me (I tried Hari Krishna, and it
didn't work).

Greg




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On Friday 4Jan, 2008, at 9:32 PM, Greg Verderber wrote:

> John Alexander wrote:
>> Oddly, it's a single cylinder motor with two carbs.
>
> Odd indeed.
> What purpose do two carbs serve on a thumper?
> One for each intake doesn't seem to make much sense
> but I can't picture any other combination.
>
That is, AFAIK, how they are configured.

My understanding is that it's all related to flow velocity. One big-
ass carb would have very low flow velocity through it, meaning it
would tend to run lean, particularly at low rpm.

Two smaller carbs each have a higher flow velocity, even though
there's the same amount of air going through them. Higher velocity
means better atomization and less lean running. I could be wrong, but
that's how I understand the setup. They're sure as heck not putting
them on there for kicks, given the price of carburetors...

later,
Johnj
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On Jan 4, 2008 9:32 PM, Greg Verderber wrote:
> John Alexander wrote:
> > Oddly, it's a single cylinder motor with two carbs.
>
> Odd indeed.
> What purpose do two carbs serve on a thumper?

Elementary my dear Greg. One for the left side of the combustion chamber.
One for the right side.
Hey, there are two exhaust pipes as well!

> One for each intake doesn't seem to make much sense
> but I can't picture any other combination.

JohnA in LA
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