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are there vacuum ports ion the dellorto carbs?

Discussion in 'Loop & Tonti' started by thierry roullier, Aug 12, 2020.

  1. thierry roullier

    thierry roullier Tuned and Synch'ed

    Jan 1, 2019
    Likes Received:
    Paris IL
    Another newbie question. On many 2 cylinder bikes one can balance carbs using vacuum ports on cabs or injectors.

    I looked a the docs and cannot find any on my Le Mans IV. Am I missing anything?

    If not how does one balance carbs?
  2. john zibell

    john zibell Moderator Staff Member GT di Razza Pura

    Oct 28, 2008
    Likes Received:
    Huntsville, AL
    Ports are not on the carbs, but on the intake manifold. Remove the screws on the outer side (side of the flange) and insert adapters to connect the sync device. see item 4 in this illustration from the parts manual


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