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82 maxim 75 CARB SYNC PROCEDURE!

Discussion in 'XJ Technical Chat' started by badassdad, Sep 27, 2011.

  1. badassdad

    badassdad New Member

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    Looked and looked. Cannot find a step by step preocedure to sync the carbs on this maxim 750. Everybody here has been great with the help so far! Again I humbly ask? Help!
     
    badassdad, Sep 27, 2011
    #1
  2. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    Easy as can be. (Assuming your valves are in spec.)

    Remember that #3 has no adjuster other than the main idle knob, so it's "home base."

    Also remember that if you did a good bench sync, the actual adjusting will be VERY SMALL "tweaks" not 1/4 turn leaps.

    Bike needs to be warmed up, and you'll need a house fan blowing on the motor. "Blip" the throttle and allow the motor to settle back down between adjustments.

    -Block YICS.

    -Set idle up to around 1100rpm using the big knob.

    -Adjust #1 so it matches #2.

    -Adjust #2 (due to the design of the linkage, it will bring #1 with it) so it matches #3. Now #1 and #2 should match #3.

    -Adjust #4 to match #3.

    Unblock YICS, set idle to spec. Done.

    If you're not using a 4-stick manometer, but a two-bottle rig or other two-carb comparative setup, you can check #1 against #3. If not balanced, run back through the sequence again.

    If you make any drastic mixture adjustments afterward, you'll need to go back and re-sync.
     
    bigfitz52, Sep 28, 2011
    #2

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