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Help ZXR250 93 project help

Discussion in 'Your 250cc Projects' started by Jackkent, Mar 17, 2016.

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  1. Jackkent

    Jackkent Member

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    Hey guys im looking for some help with my project zxr, hopefully use can help resolve them
    Firstly is the hole on bottom of airbox there was no hose or anything, do i need to make something up?
    Secondly is the over flow thing from carbys with green tape around hose where does this go as its was just hanging there when bought
    Thirdly is hole on top of air box does a hose go there? As air shouldn't by pass filter
    Forthly i go start bike to turn it over and makes a buzz noise from what i believe is the fuse box and wont turn over but will turn over most times
    Fifth my engine head seems too be louder then ussual noise what i believe might be cam chain stretched or tensioner not working correctly, how do i remover tention to see if its that
    Finally thanks for all the help in advance appreciate it
     

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    Jackkent, Mar 17, 2016
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  2. Jackkent

    Jackkent Member

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    This Noise sound normal too you guys?? Or is it a typical zxr250 cam chane noise not a rattle or tick just kinda loud noise from engine in second clip first ones just a rev bomb
     
    Jackkent, Mar 17, 2016
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  3. Murdo

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

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    Cam chain. Needs some attention NOW.
     
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    Murdo, Mar 17, 2016
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  4. Jackkent

    Jackkent Member

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    Okay its just not really a rattle or tick its just kind of loud looked a chain tensioner looks fine and defiently works, video doesnt do justice but best i can do, ill try take to a good mechanic maybe see what he thinks if not time to pull engine apart
     
    Jackkent, Mar 17, 2016
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  5. Jackkent

    Jackkent Member

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    I guess ill take rocker cover off murdo check how slack chain is turn it over by hand make sure its same all the way around if its tight i dare say its just cam chain noise as im so use to my cibby which is gear driven probably stressing over nothing, as its just loud no rattle or tick
     
    Jackkent, Mar 17, 2016
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  6. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    The tensioner won't always tell you how bad the chain is. The FZR ones more or less stay in the same position even if the chain is stretched, as it was in my case.

    Comparing the old chain against a new one, it was obvious. Though the chain was only stretched by 5mm, you could visibly tell that each link had been stretched.

    The ZXR tensioners are known to be dodgy as well. I think the upgrade was one off a newer ninja 250r? I'm not a ZXR expert though.
     
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    Linkin, Mar 17, 2016
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  7. Khaiden Cori

    Khaiden Cori Active Member Premium Member

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    Must say that doesn't sound good ! That was what mine sounded like before I buggered it completely :(
     
    Khaiden Cori, Mar 18, 2016
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  8. Jackkent

    Jackkent Member

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    Ill just have to take off rocker cover khaiden, check tention all the way around worst case ill need a new cam chain best case im just use to my quiet mc22 engine and its just cam chain noise and needs a good oil change
     
    Jackkent, Mar 18, 2016
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  9. Jackkent

    Jackkent Member

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    This look loose to you guys?? On cam gear it moves very very slightly or should it have no movement on cam gear at all? What do use rekon?
     
    Jackkent, Mar 20, 2016
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  10. Joker

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

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    My opinion - there is truth to what Murdo wrote... :thumb_ups:

    I don't think there was any play in mine when tightened.
     
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    Joker, Mar 20, 2016
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  11. Jackkent

    Jackkent Member

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    Junction box making this noise, i by passed starter relay soliniod thing with screw driver so i know starter motor isnt broken what use think? Use to turn over most times npt its becoming more and more common and makes this noise

    Well where did you get you chain joker?

    And thanks for the comment
     
    Jackkent, Mar 20, 2016
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  12. Joker

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

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    I haven't replaced mine... I just re-timed everything after doing valve clearances. It may be OK but I'm considering doing it anyway (as I'm currently doing other things so may as well do it all haha).

    I would probably start with somewhere like slipstream performance in Brisbane... they can usually order in stuff if they don't have it.
     
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    Joker, Mar 20, 2016
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  13. Jackkent

    Jackkent Member

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    Fair enough joker ive got to work out a few things with electrics and, fixing cam chain and finding a neutral light replacement but after that its just getting a body kit putting her all back together
     
    Jackkent, Mar 20, 2016
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  14. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    GreyImport, Mar 20, 2016
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  15. zixxer

    zixxer Well-Known Member

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    that chain looks average, these engines are noisy btw, cutting the exhaust in half will fix it.

    dont be surprised if you do the cam chain and tensioner and its loud in a week again.
     
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    zixxer, Mar 21, 2016
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  16. Khaiden Cori

    Khaiden Cori Active Member Premium Member

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    Sounds like it's foooooked :/ I think I have a couple in my cupboard and I may be willing to sell a spare one for cheap? :)
     
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    Khaiden Cori, Mar 21, 2016
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  17. Khaiden Cori

    Khaiden Cori Active Member Premium Member

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    Also after looking around everywhere, readong and watching videos ,it seems everyone that gets a new cam chain or a tensioner , there's is rattling again within a month :/
    I guess unless your engine has done 30,000kms without it being changed ,then do it
    Otherwise just clean it and retention it every month or so haha
     
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    Khaiden Cori, Mar 21, 2016
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  18. Jackkent

    Jackkent Member

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    Would it be okay if i borrowed some parts and just tested and found outs what is wrong and buy what ever i need?
    And apparently my bikes done like 26000 but most of these bikes have been clokced over atleast once

    I know its defiently not my starter motor as i by passed the starter solinoid/ relay with a screw driver, so its either starter relay, junction box or electric start button
     
    Jackkent, Mar 21, 2016
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  19. risky

    risky risky

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    if you put a screw driver across the 2 solenoid terminals and the starter worked then it is the solenoid.see if you can get to the top of the solenoid by undoing the 2 termanals. inside the cap is copper that when electro magnet is engaged contact 2 copper contacts, 1 to each lead. if you can access clean these and your problem should be fixed.i did this last week to the cbx.
     
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    risky, Mar 21, 2016
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  20. Jackkent

    Jackkent Member

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    Thanks risky will have a go at it
     
    Jackkent, Mar 21, 2016
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