Zenith model number and jet size

Chris from Wa · Nov 2, 2008

Over a year ago when I was buying the parts for my C-123 engine (overbore kit with domed pistons, 240 head, etc.) something was said about increasing the jet size in a Zenith carb. Does anyone know what size that is? I have a Zenith carb that came off of an unidentified engine and haven't found the model number on it. Is there a specific model of carb that I should be using?

Anonymous-0 · Nov 2, 2008

When you remove the carb and take it apart you will find a # on the jets that # means size of a numbered drill bit. If you want to enlarge just drill out with the next drill#.

Chris from Wa · Nov 2, 2008

Thanks Gene

Anonymous-0 · Nov 3, 2008

I have had good luck with going 2 sizes bigger. I have also gotten the load jet adjusting screw (from the online store here)and that way if you go to big you can lean it out some.
Shaggy

Chris from Wa · Nov 3, 2008

Thanks ShaggyM, I'll check that out.

Zenith model number and jet size

Chris from Wa

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Anonymous-0

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Chris from Wa

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Anonymous-0

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Chris from Wa

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