Hmmm, 76 main jet?

Discussion in 'General Tuning' started by luke_2401, Aug 12, 2011.

  1. luke_2401

    luke_2401 New Member

    Messages:
    93
    Just been tinkering with the zip and its running a 75 main jet?
    It has a silent pro (not my choice at all), modded airbox and all restrictors removed (including the lil brass carb plate).
    Noticed it has a 75 main jet? :confused:hock: Plug is absolubtly spot on though, cant work it out?
    Surely 75 should be overkill, im assuming the airbox mod is whats balancing that out?
     
  2. creditz

    creditz Member

    Messages:
    118
    Rides:
    Speedfight 50 AC
    If it ain't broke, don't fix it :)
     
  3. luke_2401

    luke_2401 New Member

    Messages:
    93
    :L
    I like that phrase :p
    I was thinking maybe something was up? air leak somewhere?
     
  4. creditz

    creditz Member

    Messages:
    118
    Rides:
    Speedfight 50 AC
    I wouldn't have thought so, if the plugs fine i wouldn't touch it, if anything was blowing you would know by sound/power decrease. :) my speedfight 50 has a 76 jet in it as well with just an exhaust. I know it's not the same bike but you get the idea?
     

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