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Eva, the ZXR250 bitsa.

Discussion in 'Kawasaki 250cc In-line 4's' started by Wade Wilson, Jan 18, 2014.

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  1. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    From my understanding 2 turns out should be leaner.
    Zxr carbs don't have a needle clip.

    What are we missing? Are your pilot screws complete? With the spring, little washer and orings?

    What was the bike running like before the stutter started Again? Was it returning to idle really fast and dipping under idle then rising?
     
    Th3_Huntsman, Jul 4, 2014
    #121
  2. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Interesting ...... I notice here on the A model schematic (now Ive bothered to look !) that theres different needles for the outer and inner carbs ...??

    b9.png

    Yea good point mate ..... this crossed my mind also ...... and are they in the right order ...?
     
    GreyImport, Jul 4, 2014
    #122
  3. Wade Wilson

    Wade Wilson Beaяs Premium Member

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    I turned the pilot screws to 2.5 turns. I don't know what's been modified on the bike, as far as I know everything is stock except for the main jets which are 125, 128 , 128, 125. I didn't think that would be much of a problem because I have an aftermarket exhaust.

    The airfilter is an OEM replacement. I'll try running it without the filter.

    Does anyone know where I can get a carb rebuild kit (Seals, jets, needles, floats, everything else etc)?
     
    Wade Wilson, Jul 4, 2014
    #123
  4. Wade Wilson

    Wade Wilson Beaяs Premium Member

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    Sorry for the delayed reply.

    I knew there were different jets for inside and outside.

    Are there any decernable differences between the needles that I can use the find which ones are which. I've never noticed a difference, I might have put them in incorrectly.

    Also the pilot scores have the springs, washer and o-ring.

    Could my oversized jets cause it to run extremely rich?
     
    Wade Wilson, Jul 5, 2014
    #124
  5. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    Definatly!
    What caused you to fit oversized jets? What other mods have been done to engine?
     
    Murdo, Jul 5, 2014
    #125
  6. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    Just out of curiosity since your bike is a bitser can you get us Th e engine number and also the cdi number, you might have the wrong cdi for engine as well.
     
    Th3_Huntsman, Jul 5, 2014
    #126
  7. kiffsta

    kiffsta Senior Member

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    kiffsta, Jul 5, 2014
    #127
  8. Wade Wilson

    Wade Wilson Beaяs Premium Member

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    The previous owner installed the 125, 128, 128, 125 jets. As far as I can see the only other mods is the exhaust.

    Where do i find the CDI number?
     
    Wade Wilson, Jul 5, 2014
    #128
  9. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    On the Cdi it should be behind the right hand rear fairing. Am I right in saying you believe the engine is from an a model zxr250.
     
    Th3_Huntsman, Jul 5, 2014
    #129
  10. Wade Wilson

    Wade Wilson Beaяs Premium Member

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    I think it's an A model engine. The previous owner was sure that it was an 'Unrestricted' engine, I have his old receipts from when he had to replace the engine.

    It does say the engine was from a 1991 Zx2R.

    What are the main differences between the two, any way I can find out for sure?
     
    Wade Wilson, Jul 5, 2014
    #130
  11. kiffsta

    kiffsta Senior Member

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    Pm me the engine number, I can tell between the 2
     
    kiffsta, Jul 5, 2014
    #131
  12. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    Engine number. On the outside of the engine you can't really tell they are the same casing but inside have different cams and rods so different timing.
     
    Th3_Huntsman, Jul 5, 2014
    #132
  13. Wade Wilson

    Wade Wilson Beaяs Premium Member

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    It's been a while.

    I solved the problem. I saved up some cash for a few weeks and just went out and bought a reco'd carby.

    She's been running perfectly for the past day or two, tiny bit of a flat spot, but no stutter or stalls. The spark plugs are a tan brown. everything seems to be running perfectly.

    Now I need to see if I can fix the old carbies.
     
    • Like Like x 4
    Wade Wilson, Jul 17, 2014
    #133
  14. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    Good stuff mate you got there!
     
    Th3_Huntsman, Jul 17, 2014
    #134
  15. Phil

    Phil Senior Member Contributing Member

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    You should have no problem with that task, no pressure as you are mobile so take your time and enjoy your bike.:thumb_ups:
     
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    Phil, Jul 17, 2014
    #135
  16. risky

    risky risky

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    good to see.
     
    risky, Jul 17, 2014
    #136
  17. Wade Wilson

    Wade Wilson Beaяs Premium Member

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    Wade Wilson, Jul 18, 2014
    #137
  18. Phil

    Phil Senior Member Contributing Member

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    The sweet sound of success :thumb_ups: Does it get any better!
     
    Phil, Jul 18, 2014
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  19. Wade Wilson

    Wade Wilson Beaяs Premium Member

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    Well, I went for my Q-Ride course yesterday and passed everything except the figure 8's.

    The bike low sided and I couldn't continue because of the smashed up front and side fairings.

    How would you guys go about patching this up?

    [​IMG]
     
    Wade Wilson, Jul 27, 2014
    #139
  20. risky

    risky risky

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    roughen the back and fibreglass.
     
    risky, Jul 27, 2014
    #140
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