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Fuel leak float valves not sealing petrol pourinbg out!

Trojan441 Feb 7, 2020

  1. Trojan441

    Trojan441 Well-Known Member

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    Since my carb' strip down n' clean, I even bought a float height tool and sat them @ 17mm, I have had the carburettor's on & off three times n' I can't stop petrol pouring out when i connect everything back up n' prime them n' then try n' run the engine! I have looked @ the float valves under magnification & they look fine, plus they never leaked EVER before this strip down! I am really frustrated by this problem as it is keeping me off the road.

    We diligently set the float height @ 17 mm last week n' the same result happen at which we were both surprised!
    The float valves are on Ebay for ZZR 600 arw ehey the sane as on ZL float set ups anyone out there know?

    Screenshot at 2020-02-07 16:08:38.png Screenshot at 2020-02-07 16:12:51.png
     
  2. 87kawzl

    87kawzl Supporting Member

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    It could be that the seats need polished. A qtip and drill with some compound on works well
     
  3. Trojan441

    Trojan441 Well-Known Member

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    Thanks, I will have another 2morrow, also thinking of increasing the Float height slightly to shut off the fuel earlier say trying 19 mm, if that works then I will try 18 mm! PITA procedure!
     
  4. wuputt

    wuputt ZL-OA Co-owner Staff Member Administrator Super Moderator Technical Author Supporting Member

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    Are you certain you didn't depress the Lil pin on the needle?
     
  5. Trojan441

    Trojan441 Well-Known Member

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    I held the carbs angled them forward first, then tipped them back so the floats just rested on the Float needle pins, n' not depressing them!
     
  6. Trojan441

    Trojan441 Well-Known Member

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    Found this compatibility kit on Ebay!
    Set Of Four Carburettor Repair Kits


    High Quality Replacement Parts



    Kit Contains all parts shown in picture



    Will Fit the following Kawasaki:

    EL250 Eliminator 88-95

    EL252 Eliminator 97-03

    EN450 85-89

    EN500 90-95

    GPX600 88-96

    GPX750 87-88

    GPZ500 87-93

    GPZ550 87-89

    GPZ600 85-90

    GPZ750 85

    GPZ900 84-94

    GPZ1000 86-87

    GT550 87-90

    GTR1000 86-95

    KFX250 00-04

    KLE500 91-05

    KLR250 86-92

    KLX250 94-97

    ZL600 Eliminator 86-88

    ZL900 85-86

    ZL1000 87-88

    ZR550 Zephyr 91-99

    ZR750 91-99

    ZR1100 92-97

    ZRX1100 97-00


     
  7. R. J.

    R. J. Supporting Member

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    :hello: I'd buy OEM over after market. If they are made in JAPAN then they may be of good quality. 80s ZL 600 carb parts list. https://www.partzilla.com/catalog/k...86/zl600-eliminator-zl600-a1/carburetor-parts . 80s ZL 6 CARB drawing. IMG_8454.JPG #16030 (pink) VALVE. Make sure it does not have an inverted/indent ring. #92037 (orange) CLIP. Should be flat meaning both edges/sides are level with each other. #92043 (yellow) PIN. Should be flat/true and smooth meaning no wear/groves in them. Is your fuel tank rust free. Does the float bowls have any super fine rust sediment in them. If so it will build up on #16030 (pink) VALVE causing fuel to leak into the float bowls at the same time this sediment will cause your fuel valve/petcock to let fuel into the carbs ever so slowly.
     
    Last edited: Feb 8, 2020
    Trojan441 likes this.
  8. R. J.

    R. J. Supporting Member

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    :hello: Here is a video of a wore/bad float seat needle. . Video on polishing float seat. . Another one on pressure teating float needle/seat.
     
    Last edited: Feb 8, 2020
    Trojan441 likes this.
  9. Ed

    Ed Well-Known Member

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    I agree. They might cost more but their quality is known.
     
  10. Trojan441

    Trojan441 Well-Known Member

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    Other priorities 2day we have been hit by a 20 hour storm winds around 70 mph n' heavy driving rain not on the scale of some USA storms I know but damaging all the same! I hope it has gone but there may be more!
     
  11. Trojan441

    Trojan441 Well-Known Member

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    On the CVK carb's am I right in assuming the seat fotr the Float Needle is fixed in the carburettor not not easily removable , in relation to Video 3?
     
  12. Trojan441

    Trojan441 Well-Known Member

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    20200205_190452.jpg
     
  13. R. J.

    R. J. Supporting Member

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    :hello: Slide the float pin out, remove the float and the needle comes out. If it's stuck gently remove it with a pair of needle nose plyers. In post #7 the drawing has all the parts highlighted with a pink, orange and green highlighter.
     
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