Genuine Weber made in SPAIN quality With its central float chambers, full calibration capabilities, compact alloy body and wide variety of available sizes, the IDF Series has been and continues to be the winning choice for a synchronous, 2 barrel, downdraft carburetor. The IDF features diaphragm type accelerator pump circuits and ball bearing throttle shafts. Offering relative low cost for performance gained, the IDF is hard to beat. Factory Calibrations are; 28mm chokes, 4.5 aux venturi, F11 emulsion tube, 125 main jet, 200 air corrector, 55 idle jet, 50 pump jet, 55 spill jet, 200 needle valve This model 40 IDF does not have an active cold start circuit - making it a perfect choice for multiple carburettor applications.
