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Listed below are the most frequently asked questions regarding Weber Carburetors. Click on questions to view the answers.

In addition to these questions, please click here to access our Trouble Shooting Guide.

  1. Who Is Weber Carbs Direct?
  2. What Is A Genuine Weber Carburetor?
  3. What is the Warranty Policy on Genuine Weber Carburetors?
  4. What Kind Of A Choke (Starting Device) Is Included In The Conversion Kit?
  5. Can You Supply Weber Marine Carburetor Parts?
  6. Are Weber Carburetors Emissions / Street Legal?
  7. Will Installing A Weber Carburetor Improve My Fuel Economy?
  8. My Carburetor Is Running Rich And I Cannot Get A Fuel Mixture Screw Adjustment?
  9. Why Is It That When I Go Up A Steep Incline My Vehicle Stalls And Is Very Hard To Restart?
  10. While Driving At Highway Speeds My Car Tends To Surge-How Can This Be Fixed?
  11. My Vehicle Has A Fuel Return Line. Do I Have To Disconnect It?
  12. After Installing My Weber Carburetor, My Automatic Transmission Does Not Shift Properly?
  13. Is The Air Filter Provided Washable And/Or Can I Oil It Like A K & N?
  14. When I Brake Hard Or Make A Sharp Turn, My Vehicle Stalls Or Hesitates?
  15. After Installing My Weber Carburetor, My Car Has A Whistling Noise From The Carburetor?
  16. After Shutting Off My Vehicle For 10 Or 15 Minutes, I Have A Hard Time Restarting-What Should I Do?
  17. Why Is It That My Exhaust Manifold Is Glowing Bright Orange And My Temperature Gauge Is Running Hotter Than Usual?



  1. Who Is Weber Carbs Direct?
    WEBER CARBS DIRECT is the Number 1 retailer of Genuine WEBER Carburetor Conversion Kits in North America and we are the Official Retail Outlet of WEBER NORTH AMERICA, a division of INTERCO.


  2. What Is A Genuine Weber Carburetor?

    Genuine WEBER carburetors are those manufactured by or with the permission of the owner of the WEBER Marks or an authorized licensee. Interco. (dba Weber North America) maintains both a license agreement and a manufacturing agreement with Magneti Marelli Powertrain USA, LLC.

    The WEBER trademark (U.S. Registration No. 1,685,066) and the W (design) (U.S. Registration No. 1,245,581) are owned by Magneti Marelli Powertrain U.S.A., LLC, a wholly-owned subsidiary of Magneti Marelli Powertrain S.p.A. (MM).

    INTERCO. (dba WEBER NORTH AMERICA) is the North American licensee of Magneti Marelli Powertrain S.p.A. and is authorized to act on Magneti Marelli’s behalf to enforce the “Guidelines for Usage of the WEBER Mark” in connection with Google Adwords’ and eBay’s complaint processes to protect and enforce the WEBER trademark as follows:

    Click Here to Read the Guidelines for Usage of the WEBER Mark

  3. What is the Warranty Policy on Genuine Weber Carburetors?
    All WEBER carburetors & conversion kits sold by Weber Carbs Direct are warrantied for a period of 1 (one) year from the date of purchase. All carburetors covered under this warranty are subject to inspection by Weber Carbs Direct prior to repair or replacement. Under no circumstances will there be a carburetor replaced before the defective unit has been inspected and a determination made regarding warranty validity.


  4. What Kind Of A Choke (Starting Device) Is Included In The Conversion Kit?
    Most Weber carburetors are supplied with electric chokes, however, some are equipped with a water choke, a manual choke or no choke at all. Please refer to the catalog for specific details.


  5. Can You Supply Weber Marine Carburetor Parts?
    No, we do not. Weber does not currently manufacture carburetors for marine applications.


  6. Are Weber Carburetors Emissions / Street Legal?
    Aftermarket carburetors sold in the USA are NOT considered emissions or street legal. The only carburetor considered emissions legal is the original carburetor installed on the car from the factory.


  7. Will Installing A Weber Carburetor Improve My Fuel Economy?
    The majority of the progressive carburetor kit applications do improve fuel economy and driveability. IDF & synchronous carburetor kits are designed to increase performance.


  8. My Carburetor Is Running Rich And I Cannot Get A Fuel Mixture Screw Adjustment?
    Check your fuel pressure. It should not exceed 3.5 psi. High altitudes will cause a carburetor to run rich. You should re-jet the carburetor with leaner jets.


  9. Why Is It That When I Go Up A Steep Incline My Vehicle Stalls And Is Very Hard To Restart?
    Make sure your fuel pressure is 3.5 psi max., that there is no debris in needle and seat valve and insure that the float level is properly set.


  10. While Driving At Highway Speeds My Car Tends To Surge-How Can This Be Fixed?
    Check the fuel pressure, if too low & not enough volume, check the fuel pump and fuel filter. If the carburetor is running too lean, the carburetor should be re-jetted.


  11. My Vehicle Has A Fuel Return Line. Do I Have To Disconnect It?
    Please check fuel the pressure first. The fuel return line should be disconnected only if pressure is below 2psi.


  12. After Installing My Weber Carburetor, My Automatic Transmission Does Not Shift Properly?
    You should check the linkage and the automatic linkage adjustment.


  13. Is The Air Filter Provided Washable And/Or Can I Oil It Like A K & N?
    Yes, our air filter elements are washable. K&N filters are also offered on our site as an option to purchase.


  14. When I Brake Hard Or Make A Sharp Turn, My Vehicle Stalls Or Hesitates?
    Make sure the fuel pressure is no more than 3.5 psi max. Eliminate any debris in needle and seat vale and check that the float level is correctly set.


  15. After Installing My Weber Carburetor, My Car Has A Whistling Noise From The Carburetor?
    Check for vacuum leaks, damaged gaskets or a cracked adapter plate.


  16. After Shutting Off My Vehicle For 10 Or 15 Minutes, I Have A Hard Time Restarting-What Should I Do?
    The fuel pressure needs to be checked. Also make sure that the float level is correctly set.


  17. Why Is It That My Exhaust Manifold Is Glowing Bright Orange And My Temperature Gauge Is Running Hotter Than Usual?
    Your carburetor is running too lean. Please check the fuel pressure. On modified engines you should re-jet the carburetor.


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