How to Rebuild a Weber Carb

A carburetor functions to mix the fuel and air mixture that is used for combustion within the engine. This mixture must maintain a very specific ratio to ensure the proper functioning and output of your engine. Over time, carburetors will need to be rebuilt, as dust and dirt enter their chambers and start to clog them up. You will need extreme patience and meticulous attention to detail to perform a Weber carb rebuild. The rebuild will vary slightly based on your Weber carb model.

Things You'll Need

  • Carb cleaner
  • Rebuild set for your specific model
  • Socket set
  • Soaking containers
  • Blasting cabinet
  • Mild abrasive
  • Grease
  • Belt sander
  • Float-measuring tool
  • Lube


    • 1

      Locate the blow up diagram of your specific model of Weber carburetor. Sites such as have these diagrams available for free.

    • 2

      Disassemble your carburetor based on your blow up diagram. Do not remove the throttle shafts and bearings, as these are very finely tuned and you will ruin your carburetor if you change these.

    • 3

      Soak all of your metal parts in carburetor cleaner. Be sure that you have labeled all of your parts/containers so that you know where they go when you have to reassemble your carb.

    • 4

      Blast your carb bodies with a mild abrasive such as chalk or talc in a blasting cabinet.

    • 5

      Remove all of your metal parts from the soak and allow them to air dry.

    • 6

      Use a good, thick grease to pack the throttle shaft bearings.

    • 7

      Put grease onto the accelerator pump pushrod and insert it into the carb body.

    • 8

      Place your new carb gasket onto the carb. Be sure that you have placed it into the groove in the correct orientation.

    • 9

      Ensure that the top of your carb is flat otherwise you might have leaks. You can sand it down with a belt sander.

    • 10

      Reinstall your float valve onto the carb top. Use a float-measuring tool to adjust the float level. Once you have adjusted the level, you can tighten the float pivot bolt.

    • 11

      Reinstall your accelerator pump squirters.

    • 12

      Reinstall your carb top by bolting it into place.

    • 13

      Reinstall your idle mixture screws and springs. Bottom them out first and then back them out two turns.

    • 14

      Reinstall the jet stack onto the carb body.

    • 15

      Lubricate your accelerator pump pushrod and the cam and roller mechanism with lube and reinstall them.

Related Searches



You May Also Like

  • Weber Carburetor Specifications

    Weber Carburetor Specifications. The first Weber carburetor kits for Fiat automobiles were produced in 1920. Weber carburetors were originally produced in Italy...

  • Carburetor Rebuilding Tips

    Internal parts in your carburetor can wear down and fail, causing leaks and fuel blocks. Restoring carburetor operation is possible by replacing...

  • How to Install Weber Carburetors

    Weber carburetors are used to regulate the mixture of fuel and air that is drawn into the cylinders to be combusted. It...

  • How to Rebuild a VW Carburetor

    The carburetor in your Volkswagen transfers the right amount of fuel into the cylinders. The vacuum lines and other components within the...

  • Weber Carburetor Specs

    Weber Carburetor Specs. Founded in the early 1900s by Edoardo Weber, Weber Carbs Direct got its start designing carburetors for Italian car...

  • How to Rebuild a Carburetor

    Whether you are working on a vintage vehicle, a motorcycle or a lawn mower, you can save money by rebuilding the carburetor...

  • How to Rebuild a Motorcycle Carb

    Most motorcycle carburetors on two-stroke and four-stroke engines are not complex pieces of equipment. The gasoline level in the fuel bowl is...

  • How to Clean a Weber Carburetor

    If you have an older car, or a performance car, you most likely have a carburetor that is possibly made by Weber....

  • How to Rebuild a Weber Grill

    Weber grills first came on the market in the early 1950s as a charcoal grill. In the early 1980s Weber expanded its...

  • How to Tune VW Dual Weber Carburetors

    A dual Weber is a special type of carburetor used on some VW automobiles prior to the invention of electronic fuel injection....

  • How to Adjust a Weber Carburetor Choke

    A carburetor choke works to adjust the amount of air that can flow into the carburetor. The less air, the more fuel...

  • How to Turn Up the Idle on a Weber Carb

    The Weber company is one of the world's most famous carburetor manufacturers. Weber carburetors have been used on a variety of vehicles,...

  • How to Tune a Scooter's Carburetor

    The tuning for a scooter carburetor is a bit of a throwback process to the days before fuel injection and modern engines...

  • How to Adjust a Weber Carb

    Weber is name that is associated with carburetors used in many European and American vehicles. Weber is controlled by Magneti Marelli, an...

  • How to Install a Weber Carburetor in a Jeep

    Jeeps equipped with the original 2.5-liter four-cylinder or 4.2-liter six-cylinder engines came from the factory with a Carter carburetor. There are several...

  • How to Rebuild a Holley 750 Double-Pumper

    The carburetor is subject to heat, debris and mechanical wear resulting in sub-par performance. Depending on the current state of your Holley...

  • How to Move on When He Ignores You

    The end of a relationship can cause hurt, anger and denial. These feelings are a natural part of grieving that occurs after...

  • How to Adjust a 4 Bbl Carburetor

    Since it's introduction on the Buick Straight-Eight in 1952, the four barrel carburetor has been used on millions of vehicles all types....

Related Ads

View Photos

10 Fun Ways To Spend Your Tax Refund