Balancing Throttle Bodies

Discussion in '7th Generation 2010-Present' started by Jay Shapka, Apr 20, 2020.

  1. Jay Shapka

    Jay Shapka New Member

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    Hi all-

    Can the throttle bodies on this bike be balanced or not? I am unable to find a reference to the procedure in the manual.

    Thanks.
     
  2. Alan Johnson

    Alan Johnson New Member

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    There is no official procedure as far as I know, they are factory set and not part of any maintenance, but I'm sure they can be improved upon. Someone very helpfully shared this with me.
    The balance is done by the throttle butterflies.
    There are no suitable vacuum ports, so use a synchrometer placed in the inlet port to measure air flow.
    The actual value is not important as long as they are all equal.

    All the plastic above the throttle bodies has to come off.

    The master throttle is rear left and is controlled by the eco, the linkages do the other 3.
    There are 3 T15 screws (with white paint) to do the adjusting,
    one to balance rear-right with rear-left, then one each for the front throttles.

    It is a pita job to do but worth doing, and best done when the engine is fully warm.
     

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