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            Updraft 
              - Model 68  
            A 
              back suction economized system provides this updraft carburetor 
              with effective part throttle fuel economy. A variation of this design 
              can be specified with components that will handle fuel percolation. 
               
            Application 
              Dimensions  
            
              -  Engine Size 
                25-170 CID 
 
              -  Throttle 
                Bore 1.024, 1.181 inch 
 
              -  Choke Bore 
                1.376 inch 
 
              - Venturi Diameter 
                
 
              -  14-24 mm 
                range 
 
              - Fuel Inlet 
                Fitting 
 
              -  1/8-27 inch 
                pipe thread 
 
             
            Standard 
              Features  
            
              -  Choke Levers: 
                may be specified for positioning on either side of carburetor 
                
 
              -  Internal 
                Bowl Venting: minimizes the effects of air cleaner deterioration
 
              - Back Suction 
                Economizer: supplied for part throttle fuel economy 
 
              -   Versatile 
                Fuel Inlet Location: provides flexibility in fuel line location 
                
 
              -   Lip Seals: 
                on throttle shaft, minimize air leakage and seal out contamination 
                
 
              -  Die Case 
                Construction Throttle Body and Fuel Bowl 
 
             
            Optional 
              Features  
            
              -  Compact 
                Fuel Shut-Off Solenoid: prevents dieseling 
 
              -  Main Jet 
                Adjustment: provides versatility 
 
              -  Percolation 
                Control: available for high-temperature environments 
 
              -   Throttle 
                Shaft Ball Bearings: minimize throttle shaft friction 
 
              -  Ignition 
                Vacuum Port: provides signal for ignition system 
 
             
            A 
              back suction economizer on the Model 68 provides effective part 
              throttle fuel economy. Model 68's versatile fuel inlet location 
              provides fuel line hookup flexibility.   
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        © 2000-2011 Zenith Fuel Systems LLC. All rights reserved. 
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