The Weber 40 IDF/70 without cold start is a highly regarded carburetor for performance applications, particularly in classic cars, air-cooled engines, and race builds. Manufactured in Spain by Weber, this version comes without a cold start system, making it perfect for warm climate use or race engines where choke is not needed.
This carburetor is supplied with a standard factory calibration, which provides excellent performance right out of the box. If any changes to jetting are required, these can be specified at the time of order.
Factory Jetting:
- Venturi: 28mm
- Auxiliary Venturi: 4.5
- Main Jet: 115
- Air Corrector: 200
- Emulsion Tube: F11
- Idle Jet: 55
- Pump Jet: 50
- Pump Bleed: 000
Perfect for VW Type 1, Fiat, Alfa Romeo, and many other classic engine configurations.
