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98 softail, evo 1340, carb adjustment

Discussion in 'Motorcycle Tech Talk' started by bigdaddy, Feb 28, 2008.

  1. bigdaddy

    bigdaddy New Member

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    Hey everyone, just bought 1998 harley softail with 1340 evo, the bike runs real strong and will idle after it is warm....but it boggs down when i start off and i have to keep the rpms up high to keep it going, once smoothes out it hauls booty...it has k&n filter and drag pipes....I'm thinking something going on with the carb....maybe mixture or to much fuel dump in the begining....any ideas???? thanks
    bigdaddy, Feb 28, 2008
    #1
  3. chucktx

    chucktx Moderator Staff Member

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    welcome to the board bigdaddy!!!!!! glad your here and posting!!
    some questions for you....are the drags baffled or open?? which carb are you running?? are you running the stock intake can or an after market?? from your post is sounds like the bike will not idle when cold????
    let us know.......:)
    chucktx, Feb 28, 2008
    #2
  4. bigdaddy

    bigdaddy New Member

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    no baffles vance/hines pipes....don't know the history onthe bike...not sure if carb is stock....it will idle if i pull enricher out...it is just on start offs it boggs...i have to keep rpms on it to start off..then it runs great and idles great...
    bigdaddy, Feb 28, 2008
    #3
  5. chucktx

    chucktx Moderator Staff Member

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    ok, first off you need some baffles in the pipes....you need some back pressure. drag pipes provide no increase in preformance untill you are wide open throttle, and actually reduce preformance and milage from idle, all the way to wot. make sure the aircleaner is clean. auto parts stores carry the k&n filter recharge kits. get one and follow the directions on the box. all engines need to warm up before ya use them, and the enrichner is designed for this purpose. before ya sink a bunch of money in "stuff" i would adress those two items.....pipes and filter....then see how the bike preforms.....:)
    chucktx, Feb 28, 2008
    #4
  6. bigdaddy

    bigdaddy New Member

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    thanks i will try that this weekend..i just can't beleive the bike runs so good for it ot be anything major...thanks again..
    bigdaddy, Feb 28, 2008
    #5
  7. ringo912

    ringo912 Active Member

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    What Chuck said.:D Wide opened drag pipes are the worst performers, especially the long ones.
    ringo912, Feb 29, 2008
    #6

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