Yoshimura slip-on question.

Discussion in '1st & 2nd Generation 1983-1989' started by vfrf2, Mar 4, 2010.

  1. vfrf2

    vfrf2 New Member

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    I acquired a used Yoshimura 4-1 slip-on system and I'm wondering if I have to rejet? If I remember correctly, when these things were available from Dennis Kirk many years ago, I thought it said no jetting is required. I'm running a K&N, all stock other than that.

    Common sense tells me to rejet if I use it. Input?
     
  2. squirrelman

    squirrelman Member

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    Do it ride good or cough, sputter, sneeze, and miss ??

    If it does need any futher attention it usually shows up as a flat spot at about 4500-5500 rpm.

    You'll only know by trying.....
     
  3. vfrf2

    vfrf2 New Member

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    I haven't installed it yet. The carbs were removed, cleaned, rebuilt, synched just 4 months ago. Running good!
     

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