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Help First ride in the rain... Problems.

Discussion in 'Kawasaki 250cc In-line 4's' started by Seapop, May 31, 2015.

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  1. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Yes they can be float bowl vents .... and if plugged in the wrong place blocking air or kinked then Id say u would have a problem

    If possible take some pics of your setup
     
    • Like Like x 1
    GreyImport, Jun 11, 2015
    #21
  2. zixxer

    zixxer Well-Known Member

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    there will be some hoses from the carbs to airbox the other vacuum lines will be on the cylinder head underneath the carbs.

    the ones that go from the carbs to airbox dont matter it just recycles the air and they arent important.

    the ones off the cylinder head are vacuum lines which go into the fuel tank, no idea about this water hose thing but im guessing it just traps the water and you empty it so it essentially goes to nowhere.

    just put big fuel line on the big one on the petcock and smaller one on the other one.
     
    zixxer, Jun 11, 2015
    #22
  3. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Just been trying to figure where these all go on the ZXR

    The lines from 1 and 4 go to the fuel tap and 2 and 3 go into a single line to the bottom of the vacuum valve

    vacs.jpg

    Now after a rethink..... where does this bastard go to? .... the airbox?

    vv 2.jpg
     
    GreyImport, Jun 11, 2015
    #23
  4. Seapop

    Seapop Well-Known Member Premium Member Contributing Member

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    So confused. I will get back tomorrow and post a pic. Is there any plug directly underneath the centre of your guys fuel tanks? (Not anywhere near the petcock)
     
    Seapop, Jun 11, 2015
    #24
  5. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Dont worry mate I thought I knew wat I was talking about but I think I confused myself :commando:

    Anyway heres that drain hole thats connected to that internal pipe and the outlet under the tank ..... also thats all there is under the ZXRc tank

    drain.jpg drain 2.jpg
     
    GreyImport, Jun 11, 2015
    #25
  6. Seapop

    Seapop Well-Known Member Premium Member Contributing Member

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    @GreyImport that's the one mate!

    So what I've been doing is plugging in a tube/hose coming from the carbies into here? I hope I'm completely wrong because if I am then I know why my bike isn't working. The tube/hose should go into the air box?
     
    Seapop, Jun 12, 2015
    #26
  7. Phil

    Phil Senior Member Contributing Member

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    Took some photo's this morning so that you can see exactly what's what under the tank

    1 this photo shows the vacuum lines coming off each rubber boot that carbs attach to, you can see a T-piece that joins all 4 together and the long hose that attaches to your petcock

    vacuum lines (600x800).jpg

    2 this photo shows the back of the petcock where the vacuum line connects to, inside that section of the petcock is a diaphragm that works when the engine is running and assist in pumping fuel to the carbs.

    petcock.jpg

    3 this photo is of the petcock on the tank. You see the connectors for the vacuum line(smaller diameter) and the larger one being for fuel delivery to the carbs.

    petcock on tank.jpg

    4 this photo shows the fuel line from the carbs, the fuel line is a larger diameter pipe than the vacuum line.

    fuel line to carbs.jpg

    Hope these help you get things sorted.
    The photo put up yesterday by @GreyImport is a drain and should have a hose connected to it....but most people don't bother.
    Good luck with it mate.
     
    Phil, Jun 12, 2015
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  8. Seapop

    Seapop Well-Known Member Premium Member Contributing Member

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    Ok team....

    I got home tonight and took a couple of photos to show everyone what I mean.
    First of all. @Phil and @GreyImport thanks for taking the time to throw up some photos to help me out. Also cheers for everyone elses help

    Big picture.jpg

    So this first photo is the big picture. My thumb is over a tube/hose that comes from Carbs 3 and 4. On the left hand side you can see another hose that comes from carbs 1 and 2. This was the damn mystery hose that I kept plugging underneath my tank on what everyone here agrees to be the water drain from the fuel cap.

    Here is a closer shot of the two hoses coming from the carbs that @zixxer said were air recycling hoses.

    Dual hoses .jpg

    I believe these are both supposed to be plugged in to the airbox plugs show in this next photo on the bottom right just under my thumb. The hose from carbs 3 and 4 happily reaches to here. The "mystery hose" from carbs 1 and 2 is way too short? which tells me that its never been plugged into here? but then why are there two plugs in the airbox?????



    Big picture.jpg

    So I rode the bike today. I plugged the mystery hose from carbs 1 and 2 back into the top of the fuel tank (in the water drain plug) and made sure there were no kinks in it. Guess what? the bike ran perfectly. Pulled like a bull.

    Heres a recap and what I think went wrong.

    The first post on this thread was regarding problems in the rain. Because the mystery hose was attached to the water drain plug on the tank which is shown in @GreyImport photo form above. I believe water got into the carbs?. The other break downs ive had were when the hose was kinked?

    @zixxer you say these arent important? its so strange that every time the hose isnt kinked the bike runs fine? What actually do these hoses do? Here is a photo of the mystery hose that becomes kinked when its plugged into the fuel tank aas it pushed down on it. you can clearly see the kink halfway up the hose
    Mystery hose kinked.jpg

    TOmorrow I will buy a bigger hose and make sure it goes from carbs 1 and 2 into the second air box plug. I will leave the water drain plug under the fuel tank empty as i think it should be?

    Hopefully no more problems after this. What does everyone reckon?
     
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    Seapop, Jun 12, 2015
    #28
  9. Pygmygod

    Pygmygod Well-Known Member

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    Do you have the manual for your bike?
    It may show you were the hoses are supposed to go.

    FYI - I'd be putting a thick ziptie around that mid way point of the left hose and another ziptie near the carb end of the right hose as it also looks kinked in pic#2.
     
    Pygmygod, Jun 12, 2015
    #29
  10. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Theres no manual to be found for the Balius

    Heres my take ....

    Firstly those carbs are replacements ..... wreckers mark parts with a white marker like that
    So I would assume a PO has not attached those hoses correctly when he has replaced the carbs and may possibly be not even the correct hoses.
    If there are two places to attach hoses on the airbox then I would say they are float bowl vents

    Pull them off and go to Supercheap or wateva and get enough hose to run them the correct distance and path ..... the old hoses are probably not flexible enough anymore to curve without kinking.

    Cut the old hose in the middle somewhere to get the correct size .... the ends will be stretched

    And if my theory is correct it would certainly make your conclusion correct about getting some water into 2 of the carb bowls

    And while u are getting tube , get a piece that will run from the drainage outlet of the tank so it drains down in front of the swingarm under the bike so to speak.
     
    GreyImport, Jun 12, 2015
    #30
  11. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Here we go ..... looks to be the 2 hoses running across the airbox

    A still from the youtube below

    2 hoses.jpg

     
    GreyImport, Jun 13, 2015
    #31
  12. Seapop

    Seapop Well-Known Member Premium Member Contributing Member

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    Thanks @GreyImport

    The video just happens to be a balius aswell. I think that's a balius 2 which was produced from 1997 onwards. Any how it is extremely similar. I can clearly see the two tubes going into the air box.

    Your insight is fascinating. I don't know what to think or feel about the fact that they are replacement carbies... Oh well...
    Tremendous idea about buying hoses aswell.

    To be honest everything is so common sense! But at the end of the day if you've never taken a bike apart and had a look you'll never know! So thanks team for once again solving my problems.

    Now I can only wonder how much a mechanic would have charged me by saying something like my whole carbs needs a rebuild and my top end needs done and 39 other things when all he would've done was put the hose where it was meant to go.... If bike mechanics are the same as car mechanics then I've had some bad experiences..

    Thanks team! Here's to no more problems from now on! Lol doubt it.. You'll hear from me soon.
     
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    Seapop, Jun 13, 2015
    #32
  13. zixxer

    zixxer Well-Known Member

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    those hoses being disconnected shouldnt affect performance though.
     
    zixxer, Jun 13, 2015
    #33
  14. Seapop

    Seapop Well-Known Member Premium Member Contributing Member

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    @zixxer I know what you mean..
    I have just replaced the hoses and put them both in the air box and Have just done 113km today with no problems?
     
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    Seapop, Jun 13, 2015
    #34
  15. zixxer

    zixxer Well-Known Member

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    as far as i know they are just vent hoses and go to the airbox to recycle the air, i might be wrong but i asked my mechanic about mine as it was cracked and he told me it wouldnt affect anything.

    did you attach the vacuum line back up and get it sorted?
     
    zixxer, Jun 13, 2015
    #35
  16. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Then you need a new mechanic

    Google 'float bowl vents'

    And the reason they vent into the airbox is so they vent CLEAN air
     
    GreyImport, Jun 13, 2015
    #36
  17. Seapop

    Seapop Well-Known Member Premium Member Contributing Member

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    @zixxer the vacuum line to the petcock was never a problem that was on and all along. The vent line from carb 1 and 2 was the mystery hose. As soon as I plugged this into the air box everything is awesome.
     
    Seapop, Jun 13, 2015
    #37
  18. Murdo

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

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    Well done. :thumb_ups:
     
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    Murdo, Jun 13, 2015
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