Help Ahh! ZXR250 wont idle!

Discussion in 'Kawasaki 250cc In-line 4's' started by Soupe, Dec 16, 2014.

  1. Soupe

    Soupe Member

    Messages:
    16
    Likes Received:
    1
    Trophy Points:
    13
    Location:
    Maryborough
    Hi guys! , just bought a 1991 zxr250 but cant get it to idle.

    So far i have replaced the carb with a second hand also cleaned and adjusted that one. Will run ok on choke but dies as soon as its taken off choke it dies. Havnt even got to take it for a ride yet D:
     
  2. kiffsta

    kiffsta Senior Member

    Messages:
    9,066
    Likes Received:
    6,872
    Trophy Points:
    1,168
    Location:
    Brisbane
    have you adjusted the idle screw ? Also when you adjusted them, what did you do ?
     
  3. Soupe

    Soupe Member

    Messages:
    16
    Likes Received:
    1
    Trophy Points:
    13
    Location:
    Maryborough
    Yes, one of the first things i tried.
     
  4. Soupe

    Soupe Member

    Messages:
    16
    Likes Received:
    1
    Trophy Points:
    13
    Location:
    Maryborough
    Just adjusted the basics, mixture screw 2 and a half turns out, float level checked and ok. Just cant figure it out.
     
  5. The Wizard

    The Wizard Well-Known Member

    Messages:
    115
    Likes Received:
    104
    Trophy Points:
    273
    Location:
    Mt Isa, Queensland
    Blocked pilot jets?
     
  6. Soupe

    Soupe Member

    Messages:
    16
    Likes Received:
    1
    Trophy Points:
    13
    Location:
    Maryborough
    Hmm i did clean them but thats a possiblity the carb was full of gunk. Would it be worth rebuilding the carb?
     
  7. The Wizard

    The Wizard Well-Known Member

    Messages:
    115
    Likes Received:
    104
    Trophy Points:
    273
    Location:
    Mt Isa, Queensland
    • Like Like x 1
  8. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

    Messages:
    2,428
    Likes Received:
    1,173
    Trophy Points:
    823
    Location:
    Beenleigh
    Carby boots or vacuum leak possibly?
     
    • Like Like x 1
  9. Soupe

    Soupe Member

    Messages:
    16
    Likes Received:
    1
    Trophy Points:
    13
    Location:
    Maryborough
    I will have a look for vac leaks tomorrow. If not i will order a kit. Doez it include needle amd seat, and jets?
     
  10. Jake89

    Jake89 Active Member Premium Member Contributing Member

    Messages:
    245
    Likes Received:
    192
    Trophy Points:
    173
    Location:
    Wagga wagga
    The litetek kit replaces all the carb seals. I just done mine and it has made it so much easier to start. It idles a lot better now as well. It doesn't have the jets, seats and needles.
     
    • Like Like x 1
  11. Murdo

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

    Messages:
    6,406
    Likes Received:
    4,795
    Trophy Points:
    1,148
    Location:
    Tamworth, NSW
    Sound like an air leak if you need the choke on for it to run.
     
    • Like Like x 2
  12. Soupe

    Soupe Member

    Messages:
    16
    Likes Received:
    1
    Trophy Points:
    13
    Location:
    Maryborough
    Does any one have a vac line diagram?
     
  13. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

    Messages:
    2,428
    Likes Received:
    1,173
    Trophy Points:
    823
    Location:
    Beenleigh
    Is it an a model? If so the only vacuum lines are from the carb boots and to the fuel tank. If mine is disconnected from the tank it doesn't idle.
     
  14. Soupe

    Soupe Member

    Messages:
    16
    Likes Received:
    1
    Trophy Points:
    13
    Location:
    Maryborough
    Its looking like it could be overfueling, pulled the carb out and bowls off checked the floats and it dumping fuel in when the needles are shut.....Could it be as simple as needle and seat?
     
  15. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

    Messages:
    2,428
    Likes Received:
    1,173
    Trophy Points:
    823
    Location:
    Beenleigh
    Sure could
     
  16. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

    Messages:
    10,931
    Likes Received:
    6,723
    Trophy Points:
    1,168
    Location:
    North by NW NSW Oztralia - Tamworth
  17. Soupe

    Soupe Member

    Messages:
    16
    Likes Received:
    1
    Trophy Points:
    13
    Location:
    Maryborough
    Seal kit and new needle and seats it is! Thanks guys. I will keep you posted on how it goes.
     
    • Like Like x 1
  18. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

    Messages:
    10,931
    Likes Received:
    6,723
    Trophy Points:
    1,168
    Location:
    North by NW NSW Oztralia - Tamworth
    • Like Like x 1
  19. Soupe

    Soupe Member

    Messages:
    16
    Likes Received:
    1
    Trophy Points:
    13
    Location:
    Maryborough
    Whos had the seats out and how do they come out?
     
  20. kiffsta

    kiffsta Senior Member

    Messages:
    9,066
    Likes Received:
    6,872
    Trophy Points:
    1,168
    Location:
    Brisbane
    Slide the little pin, I use a small flat blade to get it started
     

Share This Page