imUfer Carburetor 

This Carburetor is designed exclusively for Harley Big Twin and Sportster engines.   

Butterfly-type carb with adjustable idle mixture screw and a changeable mid-range and high speed jet.    

Fully adjustable accelerator pump and a variable enrichment/fast idle device for improved throttle response, engine starting and warm-ups.


The imUfer carburetor has a 1-7/8" throat at the butterfly and a 1-9/16" venturi.  


Includes main jet sizes: .066, .068, .070, .072, .074, .076, and .078.  


Includes intermediate jet sizes: .0265, .028, .0295, and .031


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