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  VW Parts Catalog > Carbs & Fuel System >

Weber IDF Air Bypass Screw, EACH, 64750.029
Weber IDF Air Bypass Screw, EACH, 64750.029


 
Weber IDF Air Bypass Screw, EACH, 64750.029 is a small screw at the carburetor base, which regulates how much air is bypassing the idle circuit. This is used to micro adjust and balance flow at idle and low speeds, between barrels on the same carburetor. On any carburetor, one Air Bypass Screw should be fully closed (seated), and the "Low Flowing" barrel should have the screw turned out slightly so the flow at idle matches. If you have a huge difference between barrels, either the throttle shaft on the carburetor is twisted, the throttle plates are improperly installed, or the engine has a mechanical problem causing low flow (vacuum).

Any tmie you change the idle speed, carb sync, idle jet size, or ignition timing, you must re-set the idle mixture!

Price: $7.95
Item eligible for Econo/1st Class Mail shipment, min ship charge applies


: 64750.029


QTY:
Overview
 
Weber IDF Air Bypass Screw, EACH, 64750.029 is a small screw at the carburetor base, which regulates how much air is bypassing the idle circuit. This is used to micro adjust and balance flow at idle and low speeds, between barrels on the same carburetor. On any carburetor, one Air Bypass Screw should be fully closed (seated), and the "Low Flowing" barrel should have the screw turned out slightly so the flow at idle matches. If you have a huge difference between barrels, either the throttle shaft on the carburetor is twisted, the throttle plates are improperly installed, or the engine has a mechanical problem causing low flow (vacuum).

Any tmie you change the idle speed, carb sync, idle jet size, or ignition timing, you must re-set the idle mixture!


Related Items...
Weber IDF Air Bypass Screw Lock Nut, EACH, 34705.001
Price: $2.00
Item eligible for Econo/1st Class Mail shipment, min ship charge applies
Weber IDF Air Bypass Screw Lock Nut, Each, 34705.001

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