Old Zenith accessory?

Wick

Wick

Well-known member
I was digging through a estate today and found this.I've heard of a adjustable jet for power or economy, just another gimmick from years ago.
Look's like this one ran for along time.
 

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Is that one missing a needle or something to adjust the fuel flow. There is this Savo adjustable jet on eBay right now.
 

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Yes, I think most of the newer Zenith updraft carbs used on Ford, Ferguson, etc tractors were all adjustable.
 
The EPA would not approve. For interest only, the computer on a modern fuel injected car varies the mixture from rich to lean and back again many times a second to allow the catalytic converter to work correctly.
 
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