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Problem with the zxr (new video)
Posted: Thu Nov 08, 2012 2:14 am
by JulianWerner
Hi guys.
I just bought a zxr 400 1991 modell.
i tried a long time today, getting it to run.
After 20 minutes i got i to run, but i died every time i toucht the throttle.
Finaly the bike got warm, on idle running. and them it some gas. But i response very bad, and dosent go over 6000 rpm's..
Video that i mine on youtube .
http://www.youtube.com/watch?v=NrMPERDIDQY&feature=plcp
I hope you guys can help me. Im new to kawasaki and 4 strokes.
And another small question, what spark plug should i use ?
Re: Problem with the zxr (video)
Posted: Fri Dec 28, 2012 11:28 am
by ross46
Did you find out what the problem was with this? See no one has replied for a month?
Re: Problem with the zxr (video)
Posted: Fri Dec 28, 2012 7:47 pm
by JulianWerner
I bought a new set of carbs, second hand.
Cleaned them and i have a new problem.
I think the new carbs are over flooding, they are leaking.
3 out of 4 i think.
Guess i buy a carb repair kit, and change the gasket.
But im not sure if this is the solution.
Re: Problem with the zxr (video)
Posted: Sat Dec 29, 2012 10:01 am
by banner001
Overflow usually means the floats are set too high. Set them back to 11mm and check again for overflow.
Re: Problem with the zxr (video)
Posted: Sat Dec 29, 2012 2:49 pm
by RedexRobB
banner001 wrote:Overflow usually means the floats are set too high. Set them back to 11mm and check again for overflow.
What he said. Theres a way to do that shown in the manual.
Re: Problem with the zxr (video)
Posted: Sat Dec 29, 2012 7:58 pm
by JulianWerner
Thank you guys for replying!
I will try checking the floats next time, and if needed i will try adjusting them
I have another questing, do you guys know if i need the " carb heater " ?
It is not connected, and i live in a cold country

Re: Problem with the zxr (video)
Posted: Sun Dec 30, 2012 4:03 pm
by ross46
Alot of people on here dont use them, some even disconnect them so I wouldn't think so
Re: Problem with the zxr (video)
Posted: Mon Dec 31, 2012 1:39 pm
by RedexRobB
See how you go without the heater circuit. If its ok then you wont have to spend the time/money sorting it.
Re: Problem with the zxr (video)
Posted: Mon Dec 31, 2012 2:02 pm
by JulianWerner
Have a new video..
Its leaking, take a look..
http://www.youtube.com/watch?v=HXUZJaTShm4
Re: Problem with the zxr (video)
Posted: Mon Dec 31, 2012 2:15 pm
by RedexRobB
Cant see it myself. Where is it leaking?
Re: Problem with the zxr (video)
Posted: Mon Dec 31, 2012 3:20 pm
by JulianWerner
Its a bad camera, but about 23 seconds in the video..
From carb 2 & 3 from the bottom, only small drops.
Re: Problem with the zxr (video)
Posted: Mon Dec 31, 2012 3:26 pm
by ross46
That looks to be leaking from the drain plugs, have you tried tightening the screws up? If not some dirt might be right in the bottom stopping the plugs from closing properly as that's where the dirt settles, I had to unblock mine with a needle
Re: Problem with the zxr (new video)
Posted: Mon Dec 31, 2012 4:56 pm
by JulianWerner
aha...
I did not know that,
Stupid me bought 4 sets with carb repair kit on Ebay -.-
But should i screw them out and let the toad get out ?
Or just screw them thight ?
The time i started the bike , (after the last video) it was a very high sound from the bike..
here is a new clip, hope you know what it is
http://www.youtube.com/watch?v=hqs8IVHx ... e=youtu.be
Thanks for your help, btw !

Re: Problem with the zxr (new video)
Posted: Mon Dec 31, 2012 6:50 pm
by ross46
Sounds like something rubbing or catching but not sure what, as for the drain screws, if you tighten them up it should stop them leaking but you might want to strip the carbs and give them a good clean, hopefully someone else will chip in with an idea what that high pitch sound is, just try listening around the engine to see if you can locate the area its coming from and start there, ross
Re: Problem with the zxr (new video)
Posted: Tue Jan 01, 2013 9:52 am
by banner001
@julian, your leak is coming from the fuel drain screws, best bet is to take the carbs off, remove the back of the fuel bowl (the bi with the drain screw, then remove the drain screw and give the inside of the fuel bowl and the drain screw threads a damn good clean.
you can then test them for leaks by tightening the drain screw and filling just the back of the fuel bowl with petrol and check for leaks.
the drain screws can get seized and as you take them out, the non-allen end can get damaged and break.
to me that sound seems like something tapping, have you checked the valve clearances?