Weber Carburateurs

Jaguar: XJ12 Series II and III HE models from engine no. 7P42300 (Dezember 1979 onwards) • XJS 5.3 V12 HE models from VIN...105048 to 188104 (from February 1981 to May 1993)

40 IDF type. Complete kit comprising six carburettors, inlet manifolds and linkages

Let your Big Cat roar with our very own Weber power conversion
For many years, this style of conversion has typically been difficult to fit and the quality of the components has been somewhat lacking. This has deterred many Jaguar owners from installing what is quite possibly the ultimate performance conversion for this engine, however....
Now we have the answer!
This kit has been developed in conjunction with skilled Jaguar specialist engineers to ensure that fitting is as straightforward as possible, and that the quality of the manifolds and fittings is a match for the legendary quality of the Weber carburettors. Complete with full illustrated fitting instructions and our own Weber Tuning manual, this kit is supplied with six genuine Spanish Weber IDF carburettors and is available to suit both carburetted and injected versions of the V12 engine.
Please note: Genuine Weber carburettors are cast with the WEBER logo and are stamped „Made in Spain“
Calibration:
• choke: 28
• auxiliary venturi: 4.5
• main jet: 115
• air correction jet: 200
• emulsion tube: F11
• idle jet: 55
• pump jet: 50
• pump spill: 000