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Unrestricted CDI??? Ebay

Discussion in 'Suzuki 250cc In-line 4's' started by Damus, Mar 30, 2015.

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  1. Moo

    Moo Plodge Racing!!!

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    time to do some research :) see if the cdi are interchangeable but only if the gsxr produces more power. and if so have a look at gsxr carbs over the across one?
     
    Moo, Apr 1, 2015
    #41
  2. Damus

    Damus She is a BEAST and riding it is comparable to sex Dirty Wheel Club

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    Damus, Apr 1, 2015
    #42
  3. Damus

    Damus She is a BEAST and riding it is comparable to sex Dirty Wheel Club

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    Well and the 20kg's of weight and the lack of dual front disks =(
     
    Damus, Apr 1, 2015
    #43
  4. Frankster

    Frankster Grey Pride...Adventure before Dementia Staff Member Premium Member Ride and Events Crew

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    Frankster, Apr 1, 2015
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  5. risky

    risky risky

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    risky, Apr 1, 2015
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  6. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    GreyImport, Apr 1, 2015
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  7. Moo

    Moo Plodge Racing!!!

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    so without me delving into the above is there a difference in the CDI's on the gsxr and the across or are they the same???

    if the carbs are the same then its time to jet what you have.....or get a spare set and rebuild them at your own pace and then put then put them in...


    you could always look at putting a front end from a gsxr on to yours.......you'll have your twin discs then :)

    talk to @Stu he may be able to help you out with the front end and the carbs....
     
    Moo, Apr 1, 2015
    #47
  8. Frankster

    Frankster Grey Pride...Adventure before Dementia Staff Member Premium Member Ride and Events Crew

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    Good for you Mate.
     
    Frankster, Apr 1, 2015
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  9. Damus

    Damus She is a BEAST and riding it is comparable to sex Dirty Wheel Club

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    "so without me delving into the above is there a difference in the CDI's on the gsxr and the across or are they the same???"
    That's the big mystery.
    I will throw a pre 1994 gsx250f cdi in mind and tell you if I notice a difference.
    If you have a pre 1994 across I wouldnt bother and would imagine it would make no difference putting a gsxr250 cdi in.
     
    Damus, Apr 1, 2015
    #49
  10. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    If the Across is detuned the cams will give it away. Check the part numbers and timing figures.
    Can we get some more pics of that cute girl on the ZXR too?
     
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    maelstrom, Apr 1, 2015
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  11. Damus

    Damus She is a BEAST and riding it is comparable to sex Dirty Wheel Club

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    Ill give you as many pics as u like if you will elaborate/expand on what you just said.
     
    Damus, Apr 1, 2015
    #51
  12. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Higher performance cams generally run more lift and duration.
    Those figures are usually in the service manual.
    Ok, you have to post all the pics up now :)
     
    maelstrom, Apr 1, 2015
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  13. Grasshopper

    Grasshopper Well-Known Member Dirty Wheel Club

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    Grasshopper, Apr 1, 2015
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  14. Damus

    Damus She is a BEAST and riding it is comparable to sex Dirty Wheel Club

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    are you saying you think they may have put **** cams on it?
     
    Damus, Apr 1, 2015
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  15. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    No, the Across cams are not feces, they usually put higher performance cams in the sports bikes.
     
    maelstrom, Apr 1, 2015
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  16. Damus

    Damus She is a BEAST and riding it is comparable to sex Dirty Wheel Club

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    Ok noted. But with the unrestricted across vs the restricted one do you think its the cams?
    Any thoughts on that?
     
    Damus, Apr 1, 2015
    #56
  17. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    No idea.
    Just do your homework. Compare all the specs and parts numbers across the different models.
    If racing is your goal it would be better to sell the Across and start with a sports model.
     
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    maelstrom, Apr 1, 2015
    #57
  18. Joker

    Joker See "about me" for contact details. Contributing Member

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    You're not going to get much, if anything, out of a different CDI. That's the bottom line IMHO.

    A change in CDI and advancing the timing will work to a certain point - but to leverage it you're going to need serious engine work (ports, carbs/jets, cam work).

    And you can't guess or do a "trial and error" approach on that kind of thing. Get the timing advancing wrong and you'll get serious pinging or you'll lose power and be forever fiddling.

    Porting, bigger jets and a good tune will probably get the most out of your engine if you want to work on the same bike. But for that kind of cash *ducks in advance* you're better off simply buying a bigger bike.

    My 2c anyway. Take it or leave it I guess.
     
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    Joker, Apr 1, 2015
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  19. Damus

    Damus She is a BEAST and riding it is comparable to sex Dirty Wheel Club

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    Totally fair and good advice!
    I guess my original thoughts were it's such a good reliable cheap bike that I wanted to get to the bottom of the 4kw loss restriction.
    It's been around for 20 years + and I can't beleive I can't find out why.
    A bigger bike doesn't resolve the problem anyway those 650cc tourers aren't really designed for racing.
    The 2fiftycc forum I would imagine is for solving problems like this for lams riders or enthusiasts who want the absolute most out of their bike.
    Trust me I got pwn'd by an r6 just 20mins ago, I would get one if I could legally ride it lol.
    But 250's still hold a special place in my heart and the across is a good bike.
     
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    Damus, Apr 1, 2015
    #59
  20. Mclaren

    Mclaren Well-Known Member Contributing Member

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    My mates have 1000s and can't keep up with me through the mountains remember anyone can twist the wrist but a 250 needs to be ridden in right rev range and corner speed look at Simon from team tiger his best time isn't far off the avg 1000 round morgan park
     
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    Mclaren, Apr 1, 2015
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