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Power mods for free99

Discussion in 'XJ Modifications' started by schmauster920, Mar 13, 2009.

  1. schmauster920

    schmauster920 Member

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    Location:
    Ventura, CA
    I wanted to share my mods with the community, bike cost me 350 in dmv fees.

    Its rough but its slowly coming along. I love the battlax rear tire, ill be getting one for the front when i need to replace it.

    I have jetted with mini drill bits with pretty good luck and the intent of buying the real jets, but never really got around to it.

    [​IMG]
    I chopped up my coils and gave it some accel wires i had sitting around from a v8 kit. Soldering spark plug wires is something i didnt think i would ever do in my life. It made a huge difference in smoothness, and i barely have to use the choke. I removed the resistors from the spark plug boot things, and made a piece of metal to fit in and take up the space.
    [​IMG]

    Chopped up the bottom and lid of the airbox, bike came with a K&N so im leaving it in there. I would like to go with pod filters, but i hear tuning them is a nightmare

    [​IMG]

    Few holes in the exhaust for more airflow and noise



    [​IMG]
    [​IMG]
     
    schmauster920, Mar 13, 2009
    #1
  2. alaskazzr

    alaskazzr Member

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    Location:
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    Looking good.
    It'll be interesting to see how those mods pan out for longevity and reliability
     
    alaskazzr, Mar 14, 2009
    #2
  3. Ace_Frehley

    Ace_Frehley Member

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    Location:
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    The higher airflow from the cut out airbox may be problematic. I know some guys have had problems with the stock airbox and a K&N becuase of the increased airflow the filter provides.

    Good luck with it
     
    Ace_Frehley, Mar 15, 2009
    #3
  4. schmauster920

    schmauster920 Member

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    I have rejetted a few sizes up, everything is good now. Exhaust required some jetting as well.. plugs are nice and light tan after a plug chop at high rpm so im happy!

    Ill be installing a new clutch soon since it has been slipping for a while.

    I have also learned that new lubed cables feel really nice after old nasty ones!

    Thanks for the input
     
    schmauster920, Mar 16, 2009
    #4
  5. schmauster920

    schmauster920 Member

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    new clutch went in today, nice and grippy, no more slip n slide from the clutch :D
     
    schmauster920, Mar 20, 2009
    #5
  6. NZXJ750RIDER

    NZXJ750RIDER Member

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    how much difference does a few holes in exhaust actually make i like my standard stuff i just dont think it sounds good enough
     
    NZXJ750RIDER, Mar 20, 2009
    #6
  7. schmauster920

    schmauster920 Member

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    The holes made a big difference in sound.. i like it.. Between that, and the airbox, it sounds like the world is ending when i get on the gas lol
     
    schmauster920, Mar 20, 2009
    #7
  8. NZXJ750RIDER

    NZXJ750RIDER Member

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    well im always on the gas :) and im removing my airbox in favour of pods will let u know what i reckon
     
    NZXJ750RIDER, Mar 20, 2009
    #8

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