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Carburetor Technical Information

At The Carburetor Doctor, we only deal in 'American' Zenith carburetors. The British Zenith carbs are a completely different design as are the British Zenith-Stromberg carburetors.

Some American Zenith Downdraft Carburetors

Set of 3 Zenith Model 28 carburetors from a 6 cylinder marine engine


Zenith Model 28 carbs have the idle mixture screw in the float bowl, Model 228's have the screw in the throttle body. Many 28's and 228's use kit CK514.

More information on the Zenith Model 28/228

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Zenith Model 28 Duplex from a late 1940's REO truck

The Zenith Model 28 Duplex (Model 28ADA) was a two barrel version of the Zenith 28. It was used on a variety of large 6 cylinder truck applications in the 1940's, including REO and Federal truck. Many of these are serviced with our kit CK620.

Late Model (1980's) Industrial Zenith 228 With Governor

 

Service Manuals

Zenith Carburetor Kits

Kits With Throttle Shafts

Floats

  • F62 - Model 28 and 228
  • F63 - Model 68 and 161
  • F64 - Model 63
  • F65 - Model 87
  • F67 - Model 267
  • F68 - Model 1310
  • F69 - Model 1408