Zenith Carburertor from JD 4020

Ollie88D · Jun 7, 2015

Could someone provide me with the intake manifold inner diameter at the carburetor flange on a 4020? I have a Zenith 15108 with an accelerator pump. Currently, the carburetor is mounted on a custom intake manifold, but the diameter is too small to allow the jet in the carburetor throat to add fuel into the manifold. Any help is greatly appreciated. Thanks in advance.

James Lieb · Jun 7, 2015

Call Robert's Carb Repair 712-262-5311.

mark49 · Jun 7, 2015

I've used a couple of Zenith's on pulling tractors. I remove the accelerator pump altogether and run a set screw in the port on the carb flange. Make sure the set screw is long enough to block the passage in the throat of the carb. That is unless you really need the accelerator pump to work. In that case, disregard everything I just typed!

Zenith Carburertor from JD 4020

Ollie88D

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James Lieb

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mark49

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