Forums Forums Classic Carburettor Forum Dellottro idf 40 for vw bettle

This topic contains 1 reply, has 2 voices, and was last updated by  ClassicCarbs 9 months, 1 week ago.

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  • #324 Reply


    Hi, my name is nong , i have some questions about dual carburetor idf40.
    Now my vw bettle 1650cc engine use dual dellotrto idf40.
    I would to know the design lean specifications main jet, air, fuel pump, etc for 1650cc.
    Now i have too much fuel smelling, I assume that isn’t matching.

    Could you advise me?

    And one more question about how about shipping to Thailand?

  • #330 Reply


    Hello Nong,

    You either have WEBER 40 IDF or Dellorto DRLA 40… Please clarify?

    We need the complete specification of the jets currently in your carburettors, and the choke size please.

    Both IDF or DRLA require low pressure fuel supply, 2-3psi maximum..

    If you are getting fuel coming out and smell, it might be that your fuel pump is supplying too much pressure.



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