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jetting

Discussion in 'Motorcycle Tech Talk' started by bigsean, May 21, 2006.

  1. bigsean

    bigsean New Member

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    '84-80ci. I have an S&S super E shorty that i cant seem to get dialed in. the Shovel is mildly modified, A grind cam,9:1 pistons,3 angle valve job,manly valves sifton springs,2" santee drags,kuryakyn hypercharger air cleaner. It runs rich,fouled many plugs (different brands and types). I rebuilt the carb last month and ready to fire the bike after a lengthy down time. any suggestions on where I should start with jetting ?
    bigsean, May 21, 2006
    #1
  3. CD

    CD Guest

    What jets are in there now?
    What does a plug chop show?

    The more specifics you can provide, the more we can help.

    BTW, those 2" drags aren't doing you any favors.
    CD, May 21, 2006
    #2
  4. chucktx

    chucktx Moderator Staff Member

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    yup.....what cd said!!!!!
    have fun!
    chuck
    chucktx, May 22, 2006
    #3
  5. bigsean

    bigsean New Member

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    I am running a 70 main jet,and a 28 intermediate jet.Feeding the carb with a high flow Pingle.I was running a 2 into 1 header previously, with no baffle.Also the 2" pipes are not baffled.
    bigsean, May 23, 2006
    #4
  6. chucktx

    chucktx Moderator Staff Member

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    i would suggest to try to baffle the pipes........you are going to have a very difficult time tuning the carb with 2" open pipes.....unless you want to tune for top end only,full throttle and not rideability..........
    chuck
    chucktx, May 24, 2006
    #5
  7. bigsean

    bigsean New Member

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    Well I guess 70/28 is a good starting point. I'll see what that does for me,If you have any more suggestions they are greatly appreciated.
    LIVE,RIDE,DIE FREE!
    bigsean, May 27, 2006
    #6
  8. CD

    CD Guest

    CD, May 27, 2006
    #7
  9. bigsean

    bigsean New Member

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    Should be fired up tomorrow,so I will read the plugs at mid range run. What size Baffle would be recommended ?
    bigsean, May 29, 2006
    #8
  10. chucktx

    chucktx Moderator Staff Member

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    it shouldnt take much,,,,,just enough for some backpressure.....i have seen small baffles that slip into the end and are secured with a screw.....that should be enough
    chuck
    chucktx, May 29, 2006
    #9

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