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Headed for Sea Level

Discussion in 'Motorcycle Tech Talk' started by gunther, Sep 3, 2007.

  1. gunther

    gunther New Member

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    I have a 2000 FXST with the Stage One Screaming Eagle kit, upswept Cobra pipes, and a scoop style air intake.

    It runs awesome here in Denver.

    However, I am heading down to sea level (Jersey) for a vacation, and bringing my ride with me.

    Do I need to plan on re-jetting the carb for it to be ridable at sea level? If so, any recommendations on what I should stock up on to attempt this when I arrive?

    I have a Clymer manual, which I'm sure can walk me through the details - but I haven't worked on a carb since before I was a teenager. Any tech advice on this trip I have coming up is appreciated. I have a 200 mile ride the day after I get there - so need to be prepared so I can get things working quickly...

    Thanks!
    gunther, Sep 3, 2007
    #1
  3. cowboy

    cowboy Moderator Staff Member

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    gunther you should not have to do anything to the carb, we took A carb model TC from sealevel to Alb NM & not a bit of trouble & it ran just as strong there as it does here
    cowboy, Sep 3, 2007
    #2
  4. gunther

    gunther New Member

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    Cool - when I moved from NJ to Denver, I had a Honda Shadow 600. It needed carb work to run up here, which is why I figured I'd have to do the same to my FXST going the other way.

    Bigger bike, better technology - guess it makes sense that I shouldn't have to do anything.

    Thanks for the reply!
    gunther, Sep 3, 2007
    #3
  5. Red Rider

    Red Rider Well-Known Member

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    You may find that your bike runs even better at sea level than on your home turf. I'm dyno tuned for about 5Kft with the stock CV carb and it ran great last week when I dropped down to the lowlands. Seemed stronger than home area....and I had her up to 112mph here yesterday and it was still climbing when I backed off to keep in sight of my buds on our run. That's with the windshield on and me not even getting down behind it. Not bad for an 88ci bagger.
    Red Rider, Sep 3, 2007
    #4
  6. SK

    SK New Member

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    A carb will run much leaner at sea level than elevation. While there shouldn't be too much of a problem, be careful about it running too hot if it was tuned for Denver. I'd check the plugs after a day at sea level to see if they're tan or running white..just being careful.
    SK, Sep 4, 2007
    #5
  7. gunther

    gunther New Member

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    What should I do if I see white or yellow plugs? Just not run her as hard, or do I need to change something in the carb?
    gunther, Sep 4, 2007
    #6
  8. Hot01

    Hot01 Active Member

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    When I went from sea level to 5K+, my trouble was at 80 mph. I'm not sure if you'd have trouble in the same place, but the speed limits (and traffic) on the east coast keep you from doing too much of that.
    Hot01, Sep 4, 2007
    #7
  9. chucktx

    chucktx Moderator Staff Member

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    if you are running a cv carb, moderate elevation changes should not affect the preformance.....they will adjust to the different elevations. that is one of the many benifits of a cv carb. as long as everything else is in order.....run it like ya stole it!
    chucktx, Sep 4, 2007
    #8
  10. hotroadking

    hotroadking Super Moderator Staff Member

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    If it's properly jetted in the first place you might only need to adjust the air mix screw if anything.
    hotroadking, Sep 4, 2007
    #9

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